EP3302471B1 - Tetrasubstituted alkene compounds and their use - Google Patents

Tetrasubstituted alkene compounds and their use Download PDF

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EP3302471B1
EP3302471B1 EP16804153.1A EP16804153A EP3302471B1 EP 3302471 B1 EP3302471 B1 EP 3302471B1 EP 16804153 A EP16804153 A EP 16804153A EP 3302471 B1 EP3302471 B1 EP 3302471B1
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Prior art keywords
ethyl
indazol
amino
phenoxy
enamide
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English (en)
French (fr)
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EP3302471A4 (en
EP3302471A1 (en
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Mark Bock
Ming-Hong Hao
Manav KORPAL
Vijay Kumar Nyavanandi
Xiaoling Puyang
Susanta Samajdar
Peter Gerard Smith
John Wang
Guo Zhu Zheng
Ping Zhu
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Eisai R&D Management Co Ltd
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Eisai R&D Management Co Ltd
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Priority to PL16804153T priority Critical patent/PL3302471T3/pl
Priority to HRP20211542TT priority patent/HRP20211542T1/hr
Priority to EP21191181.3A priority patent/EP3981766A1/en
Priority to SI201631340T priority patent/SI3302471T1/sl
Priority to RS20211306A priority patent/RS62481B1/sr
Publication of EP3302471A1 publication Critical patent/EP3302471A1/en
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    • C—CHEMISTRY; METALLURGY
    • C07—ORGANIC CHEMISTRY
    • C07D—HETEROCYCLIC COMPOUNDS
    • C07D231/00—Heterocyclic compounds containing 1,2-diazole or hydrogenated 1,2-diazole rings
    • C07D231/54—Heterocyclic compounds containing 1,2-diazole or hydrogenated 1,2-diazole rings condensed with carbocyclic rings or ring systems
    • C07D231/56—Benzopyrazoles; Hydrogenated benzopyrazoles
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61P—SPECIFIC THERAPEUTIC ACTIVITY OF CHEMICAL COMPOUNDS OR MEDICINAL PREPARATIONS
    • A61P15/00—Drugs for genital or sexual disorders; Contraceptives
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61K—PREPARATIONS FOR MEDICAL, DENTAL OR TOILETRY PURPOSES
    • A61K31/00—Medicinal preparations containing organic active ingredients
    • A61K31/33—Heterocyclic compounds
    • A61K31/395—Heterocyclic compounds having nitrogen as a ring hetero atom, e.g. guanethidine or rifamycins
    • A61K31/41—Heterocyclic compounds having nitrogen as a ring hetero atom, e.g. guanethidine or rifamycins having five-membered rings with two or more ring hetero atoms, at least one of which being nitrogen, e.g. tetrazole
    • A61K31/415—1,2-Diazoles
    • A61K31/416—1,2-Diazoles condensed with carbocyclic ring systems, e.g. indazole
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61P—SPECIFIC THERAPEUTIC ACTIVITY OF CHEMICAL COMPOUNDS OR MEDICINAL PREPARATIONS
    • A61P35/00—Antineoplastic agents
    • C—CHEMISTRY; METALLURGY
    • C07—ORGANIC CHEMISTRY
    • C07D—HETEROCYCLIC COMPOUNDS
    • C07D317/00—Heterocyclic compounds containing five-membered rings having two oxygen atoms as the only ring hetero atoms
    • C07D317/02—Heterocyclic compounds containing five-membered rings having two oxygen atoms as the only ring hetero atoms having the hetero atoms in positions 1 and 2
    • C—CHEMISTRY; METALLURGY
    • C07—ORGANIC CHEMISTRY
    • C07D—HETEROCYCLIC COMPOUNDS
    • C07D317/00—Heterocyclic compounds containing five-membered rings having two oxygen atoms as the only ring hetero atoms
    • C07D317/02—Heterocyclic compounds containing five-membered rings having two oxygen atoms as the only ring hetero atoms having the hetero atoms in positions 1 and 2
    • C07D317/06—Heterocyclic compounds containing five-membered rings having two oxygen atoms as the only ring hetero atoms having the hetero atoms in positions 1 and 2 condensed with carbocyclic rings or ring systems
    • C—CHEMISTRY; METALLURGY
    • C07—ORGANIC CHEMISTRY
    • C07D—HETEROCYCLIC COMPOUNDS
    • C07D401/00—Heterocyclic compounds containing two or more hetero rings, having nitrogen atoms as the only ring hetero atoms, at least one ring being a six-membered ring with only one nitrogen atom
    • C07D401/02—Heterocyclic compounds containing two or more hetero rings, having nitrogen atoms as the only ring hetero atoms, at least one ring being a six-membered ring with only one nitrogen atom containing two hetero rings
    • C07D401/06—Heterocyclic compounds containing two or more hetero rings, having nitrogen atoms as the only ring hetero atoms, at least one ring being a six-membered ring with only one nitrogen atom containing two hetero rings linked by a carbon chain containing only aliphatic carbon atoms
    • C—CHEMISTRY; METALLURGY
    • C07—ORGANIC CHEMISTRY
    • C07D—HETEROCYCLIC COMPOUNDS
    • C07D401/00—Heterocyclic compounds containing two or more hetero rings, having nitrogen atoms as the only ring hetero atoms, at least one ring being a six-membered ring with only one nitrogen atom
    • C07D401/14—Heterocyclic compounds containing two or more hetero rings, having nitrogen atoms as the only ring hetero atoms, at least one ring being a six-membered ring with only one nitrogen atom containing three or more hetero rings
    • C—CHEMISTRY; METALLURGY
    • C07—ORGANIC CHEMISTRY
    • C07D—HETEROCYCLIC COMPOUNDS
    • C07D403/00—Heterocyclic compounds containing two or more hetero rings, having nitrogen atoms as the only ring hetero atoms, not provided for by group C07D401/00
    • C07D403/02—Heterocyclic compounds containing two or more hetero rings, having nitrogen atoms as the only ring hetero atoms, not provided for by group C07D401/00 containing two hetero rings
    • C07D403/06—Heterocyclic compounds containing two or more hetero rings, having nitrogen atoms as the only ring hetero atoms, not provided for by group C07D401/00 containing two hetero rings linked by a carbon chain containing only aliphatic carbon atoms
    • C—CHEMISTRY; METALLURGY
    • C07—ORGANIC CHEMISTRY
    • C07D—HETEROCYCLIC COMPOUNDS
    • C07D403/00—Heterocyclic compounds containing two or more hetero rings, having nitrogen atoms as the only ring hetero atoms, not provided for by group C07D401/00
    • C07D403/02—Heterocyclic compounds containing two or more hetero rings, having nitrogen atoms as the only ring hetero atoms, not provided for by group C07D401/00 containing two hetero rings
    • C07D403/12—Heterocyclic compounds containing two or more hetero rings, having nitrogen atoms as the only ring hetero atoms, not provided for by group C07D401/00 containing two hetero rings linked by a chain containing hetero atoms as chain links
    • C—CHEMISTRY; METALLURGY
    • C07—ORGANIC CHEMISTRY
    • C07D—HETEROCYCLIC COMPOUNDS
    • C07D471/00—Heterocyclic compounds containing nitrogen atoms as the only ring hetero atoms in the condensed system, at least one ring being a six-membered ring with one nitrogen atom, not provided for by groups C07D451/00 - C07D463/00
    • C07D471/02—Heterocyclic compounds containing nitrogen atoms as the only ring hetero atoms in the condensed system, at least one ring being a six-membered ring with one nitrogen atom, not provided for by groups C07D451/00 - C07D463/00 in which the condensed system contains two hetero rings
    • C07D471/04—Ortho-condensed systems
    • C—CHEMISTRY; METALLURGY
    • C07—ORGANIC CHEMISTRY
    • C07D—HETEROCYCLIC COMPOUNDS
    • C07D471/00—Heterocyclic compounds containing nitrogen atoms as the only ring hetero atoms in the condensed system, at least one ring being a six-membered ring with one nitrogen atom, not provided for by groups C07D451/00 - C07D463/00
    • C07D471/12—Heterocyclic compounds containing nitrogen atoms as the only ring hetero atoms in the condensed system, at least one ring being a six-membered ring with one nitrogen atom, not provided for by groups C07D451/00 - C07D463/00 in which the condensed system contains three hetero rings
    • C07D471/14—Ortho-condensed systems

Definitions

  • tamoxifen has been shown to activate signaling activity in the endometrium leading to an increase in risk of endometrial cancers in the clinic ( Fisher et al., (1994) J Natl Cancer Inst. Apr 6;86(7):527-37 ; van Leeuwen et al., (1994) Lancet Feb 19;343(8895):448-52 ).
  • fulvestrant since fulvestrant is a pure antagonist, it can lead to loss of bone density in post-menopausal women as ERa activity is critical for bone building.
  • clinical resistance is also beginning to emerge to these classes of ERa antagonists highlighting the need to develop next-generation compounds.
  • US2013/0231333A1 describes compounds that diminish the effects of estrogens and estrogen receptors and/or lower the concentrations of estrogen receptors.
  • ESR1 gene which encodes ERa protein
  • ER+ breast cancer patients on average are treated with seven independent therapies including chemotherapies and various anti-estrogen therapies such as tamoxifen, fulvestrant and aromatase inhibitors.
  • chemotherapies such as tamoxifen, fulvestrant and aromatase inhibitors.
  • tamoxifen tamoxifen
  • fulvestrant fulvestrant
  • aromatase inhibitors aromatase inhibitors
  • R 1 is selected from the group consisting of methyl, ethyl, cyclobutyl, cyclopropyl and -CH 2 CH 2 Cl, propyl, isopropyl, -CH 2 CF 3 , and -CH 2 CH 2 F
  • R 2 is selected from the group consisting of H and F
  • n is 0-1
  • R 3 is F
  • m is 0-2
  • R 4 are the same or different and are independently selected from the group consisting of F, CF 3 , Cl, isopropyl, -OCH 3 , -OCHF 2 , - OCF 3 , ethyl and methyl
  • p is 0-1
  • R 5 is F
  • R 6 and R 7 are the same or different and are independently selected from the group consisting of methyl, ethyl, propyl, -CH 2 CH 2 OH and wherein r is 1 or 2
  • R 1 is selected from the group consisting of methyl, ethyl, cyclobutyl, cyclopropyl and -CH 2 CH 2 Cl;
  • R 2 is selected from the group consisting of H and F;
  • n is 0-1;
  • R 3 is F;
  • m is 0-2;
  • R 4 are the same or different and are independently selected from the group consisting of F, CF 3 , Cl, isopropyl, -OCH 3 , -OCHF 2 , -OCF 3 , ethyl and methyl;
  • p is 0-1;
  • R 5 is F;
  • R 6 and R 7 are the same or different and are independently selected from the group consisting of methyl, ethyl, propyl, -CH 2 CH 2 OH and wherein r is 1 or 2; or, wherein R 6 and R 7 form a 4-6 membered heterocyclic ring with the N to which they are attached, wherein said heterocyclic ring
  • the compounds of Formula I may have the following preferred permutations or preferred combination of permutations: R 1 is ethyl or cyclobutyl; R 6 and R 7 are both methyl; R 8 is H; R 2 is H or F; m is 2 and one of R 4 is F and the other R 4 is Cl; m is 2 and both of R 4 are F; m is 0; R 3 is F; n is 0; p is 1 and R 5 is F; and p is 0.
  • the compounds of Formula I have the following permutation: R 1 is ethyl; R 2 is H; n is 0; m is 0; p is 0; R 6 and R 7 are the same and are methyl; R 8 is H; or pharmaceutically acceptable salts thereof.
  • the compounds of Formula I have the following permutation: R 1 is ethyl; R 2 is F; n is 0; m is 2 and one R 4 is F and one R 4 is Cl; p is 0; R 6 and R 7 are the same and are methyl; R 8 is H; or pharmaceutically acceptable salts thereof.
  • the compounds of Formula I are selected from the group consisting of ( E )-4-((2-(4-(( E )-1-(1 H -indazol-5-yl)-2-phenylbut-1-en-1-yl)phenoxy)ethyl)amino)- N,N- dimethylbut-2-enamide; ( E )-4-((2-(4-(( E )-1-(3-fluoro-1 H -indazol-5-yl)-2-phenyl but-1-en-1-yl)phenoxy)ethyl)amino)- N,N -dimethylbut-2-enamide; ( E )-4-((2-(4-(( E )-1-(3-fluoro-1 H- indazol-5-yl)-2-(3-fluoro-5-(trifluoromethyl)phenyl)but-1-en-1-yl)phenoxy)ethyl)amino)- N,N -di
  • R 1 is selected from the group consisting of C 1 -C 6 alkyl, -CH 2 CF 3 , C 3 -C 6 cycloalkyl and a 4-6 membered heterocyclic ring
  • R 2 is selected from the group consisting of H, halogen, hydroxy, C 1 -C 3 alkyl, C 3 -C 4 cycloalkyl and C 4 heterocyclic ring
  • R 3 are the same or different, and are independently selected from the group consisting of H, halogen, C 1 -C 6 alkyl and C 1 -C 3 alkoxy optionally substituted with at least one halogen
  • n is 0-3
  • R 4 are the same or different and are independently selected from the group consisting of H, halogen, C 1 -C 6 alkyl, and OR 11 , wherein R 11 is selected from the group consisting of C 3 -C 6 cycloalkyl, C 1 -C 6 alkyl and OR 11 , wherein R 11 is selected
  • R 1 is selected from the group consisting of C 1 -C 6 alkyl, C 3 -C 6 cycloalkyl and a 4-6 membered heterocyclic ring. In a further embodiment, R1 is -CH 2 CF 3 .
  • R 2 is selected from the group consisting of H, halogen, methyl and ethyl
  • R 3 are the same or different, and are independently selected from the group consisting of H, halogen, methyl and ethyl
  • R 4 are the same or different and are independently selected from the group consisting of H, halogen, C 1 -C 6 alkyl and C 1 -C 6 alkoxy
  • R 5 are the same or different and are independently selected from the group consisting of H, halogen, methyl and ethyl
  • R 8 and R 10 are the same or different and are independently selected from the group consisting of H and methyl
  • R 9 is selected from the group consisting of H, methyl and ethyl
  • R 6 and R 7 are the same or different and are independently selected from the group consisting of H and C 1 -C 6 alkyl or wherein R 6 and R 7 form a 4-6 atom heterocyclic ring with the N to which they
  • R 1 is cyclobutyl, ethyl, or -CH 2 CF 3 ;
  • R 2 is -H or -F;
  • n is 0;
  • m is 0 or 2, and when m is 2, then one R 4 is -Cl and the other R 4 is -F;
  • p is 0;
  • Y is -CON(CH 3 ) 2 , and
  • R 8 , R 9 , R 10 , and R 12 are all -H.
  • R 1 is selected from the group consisting of C 1 -C 6 alkyl, C 3 -C 6 cycloalkyl and a 4-6 membered heterocyclic ring
  • R 2 is selected from the group consisting of H, halogen, hydroxy, C 1 -C 3 alkyl, C 3 -C 4 cycloalkyl and C 4 heterocyclic ring
  • R 3 are the same or different, and are independently selected from the group consisting of H, halogen, C 1 -C 6 alkyl and C 1 -C 3 alkoxy optionally substituted with at least one halogen
  • n is 0-3
  • R 4 are the same or different and are independently selected from the group consisting of H, halogen, C 1 -C 6 alkyl, and OR 11 , wherein R 11 is selected from the group consisting of C 3 -C 6 cycloalkyl, C 1 -C 6 alkyl, aryl, heteroaryl
  • R 2 is selected from the group consisting of H, halogen, methyl and ethyl
  • R 3 are the same or different, and are independently selected from the group consisting of H, halogen, methyl and ethyl
  • R 4 are the same or different and are independently selected from the group consisting of H, halogen, C 1 -C 6 alkyl and C 1 -C 6 alkoxy
  • R 5 are the same or different and are independently selected from the group consisting of H, halogen, methyl and ethyl
  • R 8 and R 10 are the same or different and are independently selected from the group consisting of H and methyl
  • R 9 is selected from the group consisting of H, methyl and ethyl
  • R 6 and R 7 are the same or different and are independently selected from the group consisting of H and C 1 -C 6 alkyl or wherein R 6 and R 7 form a 4-6 atom heterocyclic ring with the N to which they
  • the compounds of Formula III or Formula IV have the following permutations or combinations of permutations: Y is -C(O)NR 6 R 7 ; R 6 and R 7 are methyl; R 8 and R 10 are both H; R 1 is ethyl or cyclobutyl; R 9 is H; R 2 is F or H; m is 2 and one of R 4 is F and the other R 4 is Cl; m is 2 and both of R 4 are F; m is 0; n is 1 and R 3 is F; n is 0; p is 1 and R 5 is F; or p is 0.
  • An embodiment may provide a compound having the following formula: or a pharmaceutically acceptable salt thereof.
  • An embodiment may provide a compound having the following formula: or a pharmaceutically acceptable salt thereof.
  • An embodiment may provide a compound having the following formula: or a pharmaceutically acceptable sail thereof.
  • a further embodiment may provide a compound or a pharmaceutically acceptable salt thereof according to any one of the preceding paragraphs for use in treating breast cancer.
  • the breast cancer may be an ER-positive breast cancer.
  • the subject may express a mutant ER-a protein.
  • An embodiment may provide use of a compound as in the paragraphs above for treating breast cancer.
  • the breast cancer is an ER-positive breast cancer.
  • said subject expresses a mutant ER-a protein.
  • a compound as presented above is used in the preparation of a medicament for treatment of breast cancer.
  • the compounds disclosed herein are useful for inhibiting the cell culture growth of MCF7 ER-alpha (wildtype) and MCF7 ER-alpha (Y537S mutant) cells.
  • Other compounds e.g., tamoxifen, raloxifene and fulvestrant
  • the compounds disclosed herein are useful for treating ER-alpha expressing breast cancer in human patients, and are useful for treating Y537S mutant ER-alpha expressing breast cancer in human patients.
  • the compounds disclosed herein are useful for treating breast cancer.
  • the breast cancer is ER- ⁇ +.
  • the breast cancer expresses an ER-a mutation, which is L536Q ( Robinson et al. Nat Genet. 2013 Dee:45(12 )), L536R ( Toy et al. Nat Genet. 2013 Dec;45(12):1439-45 ), Y537S ( Toy et al. Nat Genet. 2013 Dec;45(12):1439-45 ; Robinson et al. Nat Genet. 2013 Dec;45(12 ); Jeselsohn et al. Clin Cancer Res. 2014 Apr 1;20(7):1757-67 ), Y537N ( Toy et al.
  • alkyl As used herein, "alkyl”, "C 1 , C 2 , C 3 , C 4 , C 5 or C 6 alkyl” or “C 1 -C 6 alkyl” is intended to include C 1 , C 2 , C 3 , C 4 , C 5 or C 6 straight chain (linear) saturated aliphatic hydrocarbon groups and C 3 , C 4 , C 5 or C 6 branched saturated aliphatic hydrocarbon groups.
  • C 1 -C 6 alkyl is intended to include C 1 , C 2 , C 3 , C 4 , C 5 and C 6 alkyl groups.
  • alkyl examples include moieties having from one to six carbon atoms, such as, but not limited to, methyl, ethyl, n-propyl, i-propyl, n-butyl, s-butyl, t-butyl, n-pentyl, s-pentyl or n-hexyl.
  • a straight chain or branched alkyl has six or fewer carbon atoms (e.g., C 1 -C 6 for straight chain, C 3 -C 6 for branched chain), and in another embodiment, a straight chain or branched alkyl has four or fewer carbon atoms.
  • cycloalkyl refers to a saturated or unsaturated nonaromatic hydrocarbon ring having 3 to 7 carbon atoms (e.g., C 3 -C 7 ).
  • examples of cycloalkyl include, but are not limited to, cyclopropyl, cyclobutyl, cyclopentyl, cyclohexyl, cycloheptyl, cyclopentenyl, cyclohexenyl, and cycloheptenyl.
  • heterocycloalkyl refers to a saturated or unsaturated nonaromatic 3-8 membered monocyclic groups, 7-10 membered fused bicyclic groups having one or more heteroatoms (such as O, N, or S), unless specified otherwise.
  • heterocycloalkyl groups include, but are not limited to, piperidinyl, piperazinyl, pyrrolidinyl, dioxanyl, tetrahydrofuranyl, isoindolinyl, indolinyl, imidazolidinyl, pyrazolidinyl, oxazolidinyl, isoxazolidinyl, triazolidinyl, oxiranyl, azetidinyl, oxetanyl, thietanyl, 1,2,3,6-tetrahydropyridinyl, tetrahydropyranyl, tetrahydrothiophene, dihydropyranyl, pyranyl, morpholinyl, 1,4-diazepanyl, 1,4-oxazepanyl, and the like.
  • heterocycloalkyl groups include, but are not limited to, acridinyl, azocinyl, benzimidazolyl, benzofuranyl, benzothiofuranyl, benzothiophenyl, benzoxazolyl, benzoxazolinyl, benzthiazolyl, benztriazolyl, benztetrazolyl, benzisoxazolyl, benzisothiazolyl, benzimidazolinyl, carbazolyl, 4aH-carbazolyl, carbolinyl, chromanyl, chromenyl, cinnolinyl, decahydroquinolinyl, 2H,6H-1,5,2-dithiazinyl, dihydrofuro[2,3-b]tetrahydrofuran, furanyl, furazanyl, imidazolidinyl, imidazolinyl, imidazolyl, 1H-indazolyl,
  • optionally substituted alkyl refers to unsubstituted alkyl or alkyl having designated substituents replacing one or more hydrogen atoms on one or more carbons of the hydrocarbon backbone.
  • substituents may include, for example, alkyl, alkenyl, alkynyl, halogen, hydroxyl, alkylcarbonyloxy, arylcarbonyloxy, alkoxycarbonyloxy, aryloxycarbonyloxy, carboxylate, alkylcarbonyl, arylcarbonyl, alkoxycarbonyl, aminocarbonyl, alkylaminocarbonyl, dialkylaminocarbonyl, alkylthiocarbonyl, alkoxyl, phosphate, phosphonato, phosphinato, amino (including alkylamino, dialkylamino, arylamino, diarylamino and alkylarylamino), acylamino (including alkylcarbonylamino, arylcarbonylamin
  • arylalkyl or an “aralkyl” moiety is an alkyl substituted with an aryl (e.g., phenylmethyl(benzyl)).
  • alkylaryl moiety is an aryl substituted with an alkyl (e.g., methylphenyl).
  • alkenyl includes unsaturated aliphatic groups analogous in length and possible substitution to the alkyls described above, but that contain at least one double bond.
  • alkenyl includes straight chain alkenyl groups (e.g., ethenyl, propenyl, butenyl, pentenyl, hexenyl), and branched alkenyl groups.
  • a straight chain or branched alkenyl group has six or fewer carbon atoms in its backbone (e.g., C 2 -C 6 for straight chain, C 3 -C 6 for branched chain).
  • C 2 -C 6 includes alkenyl groups containing two to six carbon atoms.
  • C 3 -C 6 includes alkenyl groups containing three to six carbon atoms.
  • alkenyl refers to unsubstituted alkenyl or alkenyl having designated substituents replacing one or more hydrogen atoms on one or more hydrocarbon backbone carbon atoms.
  • substituents may include, for example, alkyl, alkenyl, alkynyl, halogen, hydroxyl, alkylcarbonyloxy, arylcarbonyloxy, alkoxycarbonyloxy, aryloxycarbonyloxy, carboxylate, alkylcarbonyl, arylcarbonyl, alkoxycarbonyl, aminocarbonyl, alkylaminocarbonyl, dialkylaminocarbonyl, alkylthiocarbonyl, alkoxyl, phosphate, phosphonato, phosphinato, amino (including alkylamino, dialkylamino, arylamino, diarylamino and alkylarylamino), acylamino (including alkylcarbonylamino, arylcarbon
  • Alkynyl includes unsaturated aliphatic groups analogous in length and possible substitution to the alkyls described above, but which contain at least one triple bond.
  • alkynyl includes straight chain alkynyl groups (e.g., ethynyl, propynyl, butynyl, pentynyl, hexynyl), and branched alkynyl groups.
  • a straight chain or branched alkynyl group has six or fewer carbon atoms in its backbone (e.g., C 2 -C 6 for straight chain, C 3 -C 6 for branched chain).
  • C 2 -C 6 includes alkynyl groups containing two to six carbon atoms.
  • C 3 -C 6 includes alkynyl groups containing three to six carbon atoms.
  • alkynyl refers to unsubstituted alkynyl or alkynyl having designated substituents replacing one or more hydrogen atoms on one or more hydrocarbon backbone carbon atoms.
  • substituents may include, for example, alkyl, alkenyl, alkynyl, halogen, hydroxyl, alkylcarbonyloxy, arylcarbonyloxy, alkoxycarbonyloxy, aryloxycarbonyloxy, carboxylate, alkylcarbonyl, arylcarbonyl, alkoxycarbonyl, aminocarbonyl, alkylaminocarbonyl, dialkylaminocarbonyl, alkylthiocarbonyl, alkoxyl, phosphate, phosphonato, phosphinato, amino (including alkylamino, dialkylamino, arylamino, diarylamino and alkylarylamino), acylamino (including alkylcarbonylamino,
  • optionally substituted moieties include both the unsubstituted moieties and the moieties having one or more of the designated substituents.
  • substituted heterocycloalkyl includes those substituted with one or more alkyl groups, such as 2,2,6,6-tetramethyl-piperidinyl and 2,2,6,6-tetramethyl-1,2,3,6-tetrahydropyridinyl.
  • Aryl includes groups with aromaticity, including “conjugated,” or multicyclic systems with at least one aromatic ring and do not contain any heteroatom in the ring structure. Examples include phenyl, benzyl, 1,2,3,4-tetrahydronaphthalenyl, etc.
  • Heteroaryl groups are aryl groups, as defined above, except having from one to four heteroatoms in the ring structure, and may also be referred to as “aryl heterocycles” or “heteroaromatics.”
  • heteroaryl is intended to include a stable 5-, 6-, or 7-membered monocyclic or 7-, 8-, 9-, 10-, 11- or 12-membered bicyclic aromatic heterocyclic ring which consists of carbon atoms and one or more heteroatoms, e.g., 1 or 1-2 or 1-3 or 1-4 or 1-5 or 1-6 heteroatoms, or e.g., 1, 2, 3, 4, 5, or 6 heteroatoms, independently selected from the group consisting of nitrogen, oxygen and sulfur.
  • the nitrogen atom may be substituted or unsubstituted (i.e., N or NR' wherein R' is H or other substituents, as defined).
  • heteroaryl groups include pyrrole, furan, thiophene, thiazole, isothiazole, imidazole, triazole, tetrazole, pyrazole, oxazole, isoxazole, pyridine, pyrazine, pyridazine, pyrimidine, and the like.
  • aryl and heteroaryl include multicyclic aryl and heteroaryl groups, e.g., bicyclic.
  • aryl groups include, e.g., naphthalene, benzoxazole, benzodioxazole, benzothiazole, benzoimidazole, benzothiophene, methylenedioxyphenyl, quinoline, isoquinoline, naphthrydine, indole, benzofuran, purine, benzofuran, deazapurine, indolizine.
  • the cycloalkyl, heterocycloalkyl, aryl, or heteroaryl ring may be substituted at one or more ring positions (e.g., the ring-forming carbon or heteroatom such as N) with such substituents as described above, for example, alkyl, alkenyl, alkynyl, halogen, hydroxyl, alkoxy, alkylcarbonyloxy, arylcarbonyloxy, alkoxycarbonyloxy, aryloxycarbonyloxy, carboxylate, alkylcarbonyl, alkylaminocarbonyl, aralkylaminocarbonyl, alkenylaminocarbonyl, alkylcarbonyl, arylcarbonyl, aralkylcarbonyl, alkenylcarbonyl, alkoxycarbonyl, aminocarbonyl, alkylthiocarbonyl, phosphate, phosphonato, phosphinato, amino (including alkylamino, dialkylamino, ary
  • any variable e.g., R1
  • its definition at each occurrence is independent of its definition at every other occurrence.
  • R 1 at each occurrence is selected independently from the definition of R 1 .
  • hydroxy or "hydroxyl” includes groups with an -OH or -O - .
  • halo or halogen refers to fluoro, chloro, bromo and iodo.
  • perhalogenated generally refers to a moiety wherein all hydrogen atoms are replaced by halogen atoms.
  • haloalkyl or “haloalkoxyl” refers to an alkyl or alkoxyl substituted with one or more halogen atoms.
  • Alkoxyalkyl “alkylaminoalkyl,” and “thioalkoxyalkyl” include alkyl groups, as described above, wherein oxygen, nitrogen, or sulfur atoms replace one or more hydrocarbon backbone carbon atoms.
  • alkoxy or "alkoxyl” includes substituted and unsubstituted alkyl, alkenyl and alkynyl groups covalently linked to an oxygen atom.
  • alkoxy groups or alkoxyl radicals include, but are not limited to, methoxy, ethoxy, isopropyloxy, propoxy, butoxy and pentoxy groups.
  • substituted alkoxy groups include halogenated alkoxy groups.
  • the alkoxy groups may be substituted with groups such as alkenyl, alkynyl, halogen, hydroxyl, alkylcarbonyloxy, arylcarbonyloxy, alkoxycarbonyloxy, aryloxycarbonyloxy, carboxylate, alkylcarbonyl, arylcarbonyl, alkoxycarbonyl, aminocarbonyl, alkylaminocarbonyl, dialkylaminocarbonyl, alkylthiocarbonyl, alkoxyl, phosphate, phosphonato, phosphinato, amino (including alkylamino, dialkylamino, arylamino, diarylamino, and alkylarylamino), acylamino (including alkylcarbonylamino, arylcarbonylamino, carbamoyl and ureido), amidino, imino, sulfhydryl, alkylthio, arylthio, thiocarboxylate, s
  • “Isomerism” means compounds that have identical molecular formulae but differ in the sequence of bonding of their atoms or in the arrangement of their atoms in space. Isomers that differ in the arrangement of their atoms in space are termed “stereoisomers.” Stereoisomers that are not mirror images of one another are termed “diastereoisomers,” and stereoisomers that are non-superimposable mirror images of each other are termed “enantiomers” or sometimes optical isomers. A mixture containing equal amounts of individual enantiomeric forms of opposite chirality is termed a "racemic mixture.”
  • a carbon atom bonded to four nonidentical substituents is termed a "chiral center.”
  • Chiral isomer means a compound with at least one chiral center. Compounds with more than one chiral center may exist either as an individual diastereomer or as a mixture of diastereomers, termed "diastereomeric mixture.” When one chiral center is present, a stereoisomer may be characterized by the absolute configuration (R or S) of that chiral center. Absolute configuration refers to the arrangement in space of the substituents attached to the chiral center. The substituents attached to the chiral center under consideration are ranked in accordance with the Sequence Rule of Cahn, Ingold and Prelog. ( Calm et al., Angew. Chem. Inter. Edit.
  • each incidence of a chiral center within a structural formula, such as the non-limiting example shown here: is meant to depict all possible stereoisomers.
  • a chiral center drawn with hatches and wedges, such as the non-limiting example shown here: is meant to depict the stereoisomer as indicated (here in this sp 3 hybridized carbon chiral center, R 3 and R 4 are in the plane of the paper, R 1 is above the plane of paper, and R 2 is behind the plane of paper).
  • “Geometric isomer” means the diastereomers that owe their existence to hindered rotation about double bonds or a cycloalkyl linker (e.g., 1,3-cyclobutyl). These configurations are differentiated in their names by the prefixes cis and trans, or Z and E, which indicate that the groups are on the same or opposite side of the double bond in the molecule according to the Cahn-Ingold-Prelog rules.
  • each incidence within a structural formula including a wavy line adjacent to a double bond as shown: is meant to depict both geometric isomers.
  • such structures drawn without a wavy line is meant to depict a compound having the geometric configuration as drawn.
  • Tautomer is one of two or more structural isomers that exist in equilibrium and is readily converted from one isomeric form to another. This conversion results in the formal migration of a hydrogen atom accompanied by a switch of adjacent conjugated double bonds. Tautomers exist as a mixture of a tautomeric set in solution. In solutions where tautomerization is possible, a chemical equilibrium of the tautomers will be reached. The exact ratio of the tautomers depends on several factors, including temperature, solvent and pH. The concept of tautomers that are interconvertable by tautomerizations is called tautomerism.
  • ketoenol tautomerism a simultaneous shift of electrons and a hydrogen atom occurs.
  • Ring-chain tautomerism arises as a result of the aldehyde group (--CHO) in a sugar chain molecule reacting with one of the hydroxy groups (--OH) in the same molecule to give it a cyclic (ringshaped) form as exhibited by glucose.
  • tautomeric pairs are: ketone-enol, amide-nitrile, lactam-lactim, amide-imidic acid tautomerism in heterocyclic rings (e.g., in nucleobases such as guanine, thymine and cytosine), imine-enamine and enamine-enamine.
  • atropic isomers are a type of stereoisomer in which the atoms of two isomers are arranged differently in space. Atropic isomers owe their existence to a restricted rotation caused by hindrance of rotation of large groups about a central bond. Such atropic isomers typically exist as a mixture, however as a result of recent advances in chromatography techniques, it has been possible to separate mixtures of two atropic isomers in select cases.
  • crystal polymorphs means crystal structures in which a compound (or a salt or solvate thereof) may crystallize in different crystal packing arrangements, all of which have the same elemental composition. Different crystal forms usually have different X-ray diffraction patterns, infrared spectral, melting points, density hardness, crystal shape, optical and electrical properties, stability and solubility. Recrystallization solvent, rate of crystallization, storage temperature, and other factors may cause one crystal form to dominate. Crystal polymorphs of the compounds may be prepared by crystallization under different conditions. It is understood that the compounds disclosed herein may exist in crystalline form, crystal form mixture, or anhydride or hydrate thereof.
  • a salt for example, may be formed between an anion and a positively charged group (e.g., amino) on an aryl- or heteroaryl-substituted benzene compound.
  • Suitable anions include chloride, bromide, iodide, sulfate, bisulfate, sulfamate, nitrate, phosphate, citrate, methanesulfonate, trifluoroacetate, glutamate, glucuronate, glutarate, malate, maleate, succinate, fumarate, tartrate, tosylate, salicylate, lactate, naphthalenesulfonate, and acetate (e.g., trifluoroacetate).
  • pharmaceutically acceptable anion refers to an anion suitable for forming a pharmaceutically acceptable salt.
  • a salt may also be formed between a cation and a negatively charged group (e.g., carboxylate) on an aryl- or heteroaryl-substituted benzene compound.
  • Suitable cations include sodium ion, potassium ion, magnesium ion, calcium ion, and an ammonium cation such as tetramethylammonium ion.
  • the aryl- or heteroaryl-substituted benzene compounds also include those salts containing quaternary nitrogen atoms.
  • the compounds disclosed herein may exist in either hydrated or unhydrated (the anhydrous) form or as solvates with other solvent molecules.
  • Nonlimiting examples of hydrates include monohydrates, dihydrates, etc.
  • Nonlimiting examples of solvates include ethanol solvates, acetone solvates, etc.
  • pharmaceutically acceptable salts refer to derivatives of the compounds disclosed herein wherein the parent compound is modified by making acid or base salts thereof.
  • pharmaceutically acceptable salts include, but are not limited to, mineral or organic acid salts of basic residues such as amines, alkali or organic salts of acidic residues such as carboxylic acids, and the like.
  • the pharmaceutically acceptable salts include the conventional non-toxic salts or the quaternary ammonium salts of the parent compound formed, for example, from non-toxic inorganic or organic acids.
  • such conventional non-toxic salts include, but are not limited to, those derived from inorganic and organic acids selected from 2-acetoxybenzoic, 2-hydroxyethane sulfonic, acetic, ascorbic, benzene sulfonic, benzoic, bicarbonic, carbonic, citric, edetic, ethane disulfonic, 1,2-ethane sulfonic, fumaric, glucoheptonic, gluconic, glutamic, glycolic, glycollyarsanilic, hexylresorcinic, hydrabamic, hydrobromic, hydrochloric, hydroiodic, hydroxymaleic, hydroxynaphthoic, isethionic, lactic, lactobionic, lauryl sulfonic, maleic, malic, mandelic, methane sulfonic, napsylic, nitric, oxalic, pamoic, pantothenic, phenylacetic, phosphoric,
  • salts include hexanoic acid, cyclopentane propionic acid, pyruvic acid, malonic acid, 3-(4-hydroxybenzoyl)benzoic acid, cinnamic acid, 4-chlorobenzenesulfonic acid, 2-naphthalenesulfonic acid, 4-toluenesulfonic acid, camphorsulfonic acid, 4-methylbicyclo-[2.2.2]-oct-2-ene-1-carboxylic acid, 3-phenylpropionic acid, trimethylacetic acid, tertiary butylacetic acid, muconic acid, and the like.
  • the present disclosure also encompasses salts formed when an acidic proton present in the parent compound either is replaced by a metal ion, e.g., an alkali metal ion, an alkaline earth ion, or an aluminum ion; or coordinates with an organic base such as ethanolamine, diethanolamine, triethanolamine, tromethamine, N-methylglucamine, and the like.
  • a metal ion e.g., an alkali metal ion, an alkaline earth ion, or an aluminum ion
  • an organic base such as ethanolamine, diethanolamine, triethanolamine, tromethamine, N-methylglucamine, and the like.
  • the ratio of the compound to the cation or anion of the salt may be 1:1, or any ratio other than 1:1, e.g., 3:1, 2:1, 1:2, or 1:3.
  • Solvate means solvent addition forms that contain either stoichiometric or non stoichiometric amounts of solvent. Some compounds have a tendency to trap a fixed molar ratio of solvent molecules in the crystalline solid state, thus forming a solvate. If the solvent is water the solvate formed is a hydrate; and if the solvent is alcohol, the solvate formed is an alcoholate. Hydrates are formed by the combination of one or more molecules of water with one molecule of the substance in which the water retains its molecular state as H 2 O.
  • isotopes include those atoms having the same atomic number but different mass numbers.
  • isotopes of 1 H hydrogen include tritium and deuterium
  • isotopes of 19 C carbon include 13 C and 14 C.
  • treating means administering to a subject a pharmaceutical composition to ameliorate, reduce or lessen the symptoms of a disease.
  • treating or “treat” describes the management and care of a subject for the purpose of combating a disease, condition, or disorder and includes the administration of a compound disclosed herein, or a pharmaceutically acceptable salt, polymorph or solvate thereof, to alleviate the symptoms or complications of a disease, condition or disorder, or to eliminate the disease, condition or disorder.
  • the term “treat” may also include treatment of a cell in vitro or an animal model.
  • Treating cancer may result in a reduction in size of a tumor.
  • a reduction in size of a tumor may also be referred to as "tumor regression."
  • tumor size is reduced by 5% or greater relative to its size prior to treatment; more preferably, tumor size is reduced by 10% or greater; more preferably, reduced by 20% or greater; more preferably, reduced by 30% or greater; more preferably, reduced by 40% or greater; even more preferably, reduced by 50% or greater; and most preferably, reduced by greater than 75% or greater.
  • Size of a tumor may be measured by any reproducible means of measurement. The size of a tumor may be measured as a diameter of the tumor.
  • Treating cancer may result in a reduction in tumor volume.
  • tumor volume is reduced by 5% or greater relative to its size prior to treatment; more preferably, tumor volume is reduced by 10% or greater; more preferably, reduced by 20% or greater; more preferably, reduced by 30% or greater; more preferably, reduced by 40% or greater; even more preferably, reduced by 50% or greater; and most preferably, reduced by greater than 75% or greater.
  • Tumor volume may be measured by any reproducible means of measurement.
  • Treating cancer may result in a decrease in number of tumors.
  • tumor number is reduced by 5% or greater relative to number prior to treatment; more preferably, tumor number is reduced by 10% or greater; more preferably, reduced by 20% or greater; more preferably, reduced by 30% or greater; more preferably, reduced by 40% or greater; even more preferably, reduced by 50% or greater; and most preferably, reduced by greater than 75%.
  • Number of tumors may be measured by any reproducible means of measurement.
  • the number of tumors may be measured by counting tumors visible to the naked eye or at a specified magnification.
  • the specified magnification is 2x, 3x, 4x, 5x, 10x, or 50x.
  • Treating cancer may result in a decrease in number of metastatic lesions in other tissues or organs distant from the primary tumor site.
  • the number of metastatic lesions is reduced by 5% or greater relative to number prior to treatment; more preferably, the number of metastatic lesions is reduced by 10% or greater; more preferably, reduced by 20% or greater; more preferably, reduced by 30% or greater; more preferably, reduced by 40% or greater; even more preferably, reduced by 50% or greater; and most preferably, reduced by greater than 75%.
  • the number of metastatic lesions may be measured by any reproducible means of measurement.
  • the number of metastatic lesions may be measured by counting metastatic lesions visible to the naked eye or at a specified magnification.
  • the specified magnification is 2x, 3x, 4x, 5x, 10x, or 50x.
  • subject refers to any animal, such as mammals including rodents (e.g., mice or rats), dogs, primates, lemurs or humans.
  • rodents e.g., mice or rats
  • primates e.g., mice or rats
  • lemurs e.g., mice or rats
  • humans e.g., dogs, primates, lemurs or humans.
  • Treating cancer may result in an increase in average survival time of a population of treated subjects in comparison to a population receiving carrier alone.
  • the average survival time is increased by more than 30 days; more preferably, by more than 60 days; more preferably, by more than 90 days; and most preferably, by more than 120 days.
  • An increase in average survival time of a population may be measured by any reproducible means.
  • An increase in average survival time of a population may be measured, for example, by calculating for a population the average length of survival following initiation of treatment with an active compound.
  • An increase in average survival time of a population may also be measured, for example, by calculating for a population the average length of survival following completion of a first round of treatment with an active compound.
  • Treating cancer may result in an increase in average survival time of a population of treated subjects in comparison to a population of untreated subjects.
  • the average survival time is increased by more than 30 days; more preferably, by more than 60 days; more preferably, by more than 90 days; and most preferably, by more than 120 days.
  • An increase in average survival time of a population may be measured by any reproducible means.
  • An increase in average survival time of a population may be measured, for example, by calculating for a population the average length of survival following initiation of treatment with an active compound.
  • An increase in average survival time of a population may also be measured, for example, by calculating for a population the average length of survival following completion of a first round of treatment with an active compound.
  • Treating cancer may result in increase in average survival time of a population of treated subjects in comparison to a population receiving monotherapy with a drug that is not a compound disclosed herein, or a pharmaceutically acceptable salt thereof.
  • the average survival time is increased by more than 30 days; more preferably, by more than 60 days; more preferably, by more than 90 days; and most preferably, by more than 120 days.
  • An increase in average survival time of a population may be measured by any reproducible means.
  • An increase in average survival time of a population may be measured, for example, by calculating for a population the average length of survival following initiation of treatment with an active compound.
  • An increase in average survival time of a population may also be measured, for example, by calculating for a population the average length of survival following completion of a first round of treatment with an active compound.
  • Treating cancer may result in a decrease in the mortality rate of a population of treated subjects in comparison to a population receiving carrier alone. Treating cancer may result in a decrease in the mortality rate of a population of treated subjects in comparison to an untreated population. Treating cancer may result in a decrease in the mortality rate of a population of treated subjects in comparison to a population receiving monotherapy with a drug that is not a compound disclosed herein, or a pharmaceutically acceptable salt, prodrug, metabolite, analog or derivative thereof.
  • the mortality rate is decreased by more than 2%; more preferably, by more than 5%; more preferably, by more than 10%; and most preferably, by more than 25%.
  • a decrease in the mortality rate of a population of treated subjects may be measured by any reproducible means.
  • a decrease in the mortality rate of a population may be measured, for example, by calculating for a population the average number of disease-related deaths per unit time following initiation of treatment with an active compound.
  • a decrease in the mortality rate of a population may also be measured, for example, by calculating for a population the average number of disease-related deaths per unit time following completion of a first round of treatment with an active compound.
  • Treating cancer may result in a decrease in tumor growth rate.
  • tumor growth rate is reduced by at least 5% relative to number prior to treatment; more preferably, tumor growth rate is reduced by at least 10%; more preferably, reduced by at least 20%; more preferably, reduced by at least 30%; more preferably, reduced by at least 40%; more preferably, reduced by at least 50%; even more preferably, reduced by at least 50%; and most preferably, reduced by at least 75%.
  • Tumor growth rate may be measured by any reproducible means of measurement. Tumor growth rate may be measured according to a change in tumor diameter per unit time.
  • Treating cancer may result in a decrease in tumor regrowth, for example, following attempts to remove it surgically.
  • tumor regrowth is less than 5%; more preferably, tumor regrowth is less than 10%; more preferably, less than 20%; more preferably, less than 30%; more preferably, less than 40%; more preferably, less than 50%; even more preferably, less than 50%; and most preferably, less than 75%.
  • Tumor regrowth may be measured by any reproducible means of measurement. Tumor regrowth is measured, for example, by measuring an increase in the diameter of a tumor after a prior tumor shrinkage that followed treatment. A decrease in tumor regrowth is indicated by failure of tumors to reoccur after treatment has stopped.
  • Treating or preventing a cell proliferative disorder may result in a reduction in the rate of cellular proliferation.
  • the rate of cellular proliferation is reduced by at least 5%; more preferably, by at least 10%; more preferably, by at least 20%; more preferably, by at least 30%; more preferably, by at least 40%; more preferably, by at least 50%; even more preferably, by at least 50%; and most preferably, by at least 75%.
  • the rate of cellular proliferation may be measured by any reproducible means of measurement.
  • the rate of cellular proliferation is measured, for example, by measuring the number of dividing cells in a tissue sample per unit time.
  • Treating or preventing a cell proliferative disorder may result in a reduction in the proportion of proliferating cells.
  • the proportion of proliferating cells is reduced by at least 5%; more preferably, by at least 10%; more preferably, by at least 20%; more preferably, by at least 30%; more preferably, by at least 40%; more preferably, by at least 50%; even more preferably, by at least 50%; and most preferably, by at least 75%.
  • the proportion of proliferating cells may be measured by any reproducible means of measurement.
  • the proportion of proliferating cells is measured, for example, by quantifying the number of dividing cells relative to the number of nondividing cells in a tissue sample.
  • the proportion of proliferating cells may be equivalent to the mitotic index.
  • Treating or preventing a cell proliferative disorder may result in a decrease in size of an area or zone of cellular proliferation.
  • size of an area or zone of cellular proliferation is reduced by at least 5% relative to its size prior to treatment; more preferably, reduced by at least 10%; more preferably, reduced by at least 20%; more preferably, reduced by at least 30%; more preferably, reduced by at least 40%; more preferably, reduced by at least 50%; even more preferably, reduced by at least 50%; and most preferably, reduced by at least 75%.
  • Size of an area or zone of cellular proliferation may be measured by any reproducible means of measurement.
  • the size of an area or zone of cellular proliferation may be measured as a diameter or width of an area or zone of cellular proliferation.
  • Treating or preventing a cell proliferative disorder may result in a decrease in the number or proportion of cells having an abnormal appearance or morphology.
  • the number of cells having an abnormal morphology is reduced by at least 5% relative to its size prior to treatment; more preferably, reduced by at least 10%; more preferably, reduced by at least 20%; more preferably, reduced by at least 30%; more preferably, reduced by at least 40%; more preferably, reduced by at least 50%; even more preferably, reduced by at least 50%; and most preferably, reduced by at least 75%.
  • An abnormal cellular appearance or morphology may be measured by any reproducible means of measurement.
  • An abnormal cellular morphology may be measured by microscopy, e.g., using an inverted tissue culture microscope.
  • An abnormal cellular morphology may take the form of nuclear pleiomorphism.
  • the term "alleviate” is meant to describe a process by which the severity of a sign or symptom of a disorder is decreased.
  • a sign or symptom may be alleviated without being eliminated.
  • the administration of pharmaceutical compositions disclosed herein leads to the elimination of a sign or symptom, however, elimination is not required.
  • Effective dosages are expected to decrease the severity of a sign or symptom.
  • a sign or symptom of a disorder such as cancer, which may occur in multiple locations, is alleviated if the severity of the cancer is decreased within at least one of multiple locations.
  • severity is meant to describe the potential of cancer to transform from a precancerous, or benign, state into a malignant state.
  • severity is meant to describe a cancer stage, for example, according to the TNM system (accepted by the International Union against Cancer (UICC) and the Amerimay Joint Committee on Cancer (AJCC)) or by other art-recognized methods.
  • TNM system accepted by the International Union against Cancer (UICC) and the Amerimay Joint Committee on Cancer (AJCC)
  • UNM system International Union against Cancer
  • AJCC Amerimay Joint Committee on Cancer
  • Cancer stage refers to the extent or severity of the cancer, based on factors such as the location of the primary tumor, tumor size, number of tumors, and lymph node involvement (spread of cancer into lymph nodes).
  • Tumor grade is a system used to classify cancer cells in terms of how abnormal they look under a microscope and how quickly the tumor is likely to grow and spread. Many factors are considered when determining tumor grade, including the structure and growth pattern of the cells. The specific factors used to determine tumor grade vary with each type of cancer. Severity also describes a histologic grade, also called differentiation, which refers to how much the tumor cells resemble normal cells of the same tissue type (see, National Cancer Institute, www.cancer.gov). Furthermore, severity describes a nuclear grade, which refers to the size and shape of the nucleus in tumor cells and the percentage of tumor cells that are dividing (see, National Cancer Institute, www.cancer.gov).
  • severity describes the degree to which a tumor has secreted growth factors, degraded the extracellular matrix, become vascularized, lost adhesion to juxtaposed tissues, or metastasized. Moreover, severity describes the number of locations to which a primary tumor has metastasized. Finally, severity includes the difficulty of treating tumors of varying types and locations. For example, inoperable tumors, those cancers which have greater access to multiple body systems (hematological and immunological tumors), and those which are the most resistant to traditional treatments are considered most severe.
  • symptom is defined as an indication of disease, illness, injury, or that something is not right in the body. Symptoms are felt or noticed by the individual experiencing the symptom, but may not easily be noticed by non-health-care professionals.
  • a "pharmaceutical composition” is a formulation containing a compound disclosed herein in a form suitable for administration to a subject.
  • the pharmaceutical composition is in bulk or in unit dosage form.
  • the unit dosage form is any of a variety of forms, including, for example, a capsule, an IV bag, a tablet, a single pump on an aerosol inhaler or a vial.
  • the quantity of active ingredient (e.g., a formulation of the disclosed compound or salt, hydrate, solvate or isomer thereof) in a unit dose of composition is an effective amount and is varied according to the particular treatment involved.
  • active ingredient e.g., a formulation of the disclosed compound or salt, hydrate, solvate or isomer thereof
  • the dosage will also depend on the route of administration.
  • routes including oral, pulmonary, rectal, parenteral, transdermal, subcutaneous, intravenous, intramuscular, intraperitoneal, inhalational, buccal, sublingual, intrapleural, intrathecal, intranasal, and the like.
  • Dosage forms for the topical or transdermal administration of a compound disclosed herein include powders, sprays, ointments, pastes, creams, lotions, gels, solutions, patches and inhalants.
  • the active compound is mixed under sterile conditions with a pharmaceutically acceptable carrier, and with any preservatives, buffers, or propellants that are required.
  • the phrase "pharmaceutically acceptable” refers to those compounds, anions, cations, materials, compositions, carriers, and/or dosage forms which are, within the scope of sound medical judgment, suitable for use in contact with the tissues of human beings and animals without excessive toxicity, irritation, allergic response, or other problem or complication, commensurate with a reasonable benefit/risk ratio.
  • “Pharmaceutically acceptable excipient” means an excipient that is useful in preparing a pharmaceutical composition that is generally safe, non-toxic and neither biologically nor otherwise undesirable, and includes excipient that is acceptable for veterinary use as well as human pharmaceutical use.
  • a "pharmaceutically acceptable excipient” as used in the specification and claims includes both one and more than one such excipient.
  • compositions comprising any compound disclosed herein in combination with at least one pharmaceutically acceptable excipient or carrier.
  • a pharmaceutical composition disclosed herein is formulated to be compatible with its intended route of administration.
  • routes of administration include parenteral, e.g., intravenous, intradermal, subcutaneous, oral (e.g., inhalation), transdermal (topical), and transmucosal administration.
  • Solutions or suspensions used for parenteral, intradermal, or subcutaneous application may include the following components: a sterile diluent such as water for injection, saline solution, fixed oils, polyethylene glycols, glycerine, propylene glycol or other synthetic solvents; antibacterial agents such as benzyl alcohol or methyl parabens; antioxidants such as ascorbic acid or sodium bisulfite; chelating agents such as ethylenediaminetetraacetic acid; buffers such as acetates, citrates or phosphates, and agents for the adjustment of tonicity such as sodium chloride or dextrose.
  • the pH may be adjusted with acids or bases, such as hydrochloric acid or sodium hydroxide.
  • the parenteral preparation may be enclosed in ampoules, disposable syringes or multiple dose vials made of glass or plastic.
  • a compound or pharmaceutical composition disclosed herein may be administered to a subject in many of the well-known methods currently used for chemotherapeutic treatment.
  • a compound disclosed herein may be injected directly into tumors, injected into the blood stream or body cavities or taken orally or applied through the skin with patches.
  • the dose chosen should be sufficient to constitute effective treatment but not so high as to cause unacceptable side effects.
  • the state of the disease condition e.g., cancer, precancer, and the like
  • the health of the patient should preferably be closely monitored during and for a reasonable period after treatment.
  • therapeutically effective amount refers to an amount of a pharmaceutical agent to treat, ameliorate, or prevent an identified disease or condition, or to exhibit a detectable therapeutic or inhibitory effect. The effect may be detected by any assay method known in the art. The precise effective amount for a subject will depend upon the subject's body weight, size, and health; the nature and extent of the condition; and the therapeutic or combination of therapeutics selected for administration. Therapeutically effective amounts for a given situation may be determined by routine experimentation that is within the skill and judgment of the clinician.
  • the disease or condition to be treated is cancer.
  • the disease or condition to be treated is a cell proliferative disorder.
  • the therapeutically effective amount may be estimated initially either in cell culture assays, e.g., of neoplastic cells, or in animal models, usually rats, mice, rabbits, dogs, or pigs.
  • the animal model may also be used to determine the appropriate concentration range and route of administration. Such information may then be used to determine useful doses and routes for administration in humans.
  • Therapeutic/prophylactic efficacy and toxicity may be determined by standard pharmaceutical procedures in cell cultures or experimental animals, e.g., ED 50 (the dose therapeutically effective in 50% of the population) and LD 50 (the dose lethal to 50% of the population).
  • the dose ratio between toxic and therapeutic effects is the therapeutic index, and it may be expressed as the ratio, LD 50 /ED 50 .
  • Pharmaceutical compositions that exhibit large therapeutic indices are preferred. The dosage may vary within this range depending upon the dosage form employed, sensitivity of the patient, and the route of administration.
  • Dosage and administration are adjusted to provide sufficient levels of the active agent(s) or to maintain the desired effect.
  • Factors which may be taken into account include the severity of the disease state, general health of the subject, age, weight, and gender of the subject, diet, time and frequency of administration, drug combination(s), reaction sensitivities, and tolerance/response to therapy.
  • Long-acting pharmaceutical compositions may be administered every 3 to 4 days, every week, or once every two weeks depending on half-life and clearance rate of the particular formulation.
  • compositions containing active compounds disclosed herein may be manufactured in a manner that is generally known, e.g., by means of conventional mixing, dissolving, granulating, dragee-making, levigating, emulsifying, encapsulating, entrapping, or lyophilizing processes.
  • Pharmaceutical compositions may be formulated in a conventional manner using one or more pharmaceutically acceptable carriers comprising excipients and/or auxiliaries that facilitate processing of the active compounds into preparations that may be used pharmaceutically.
  • the appropriate formulation is dependent upon the route of administration chosen.
  • compositions suitable for injectable use include sterile aqueous solutions (where water soluble) or dispersions and sterile powders for the extemporaneous preparation of sterile injectable solutions or dispersion.
  • suitable carriers include physiological saline, bacteriostatic water, Cremophor ELTM (BASF, Parsippany, N.J.) or phosphate buffered saline (PBS).
  • the composition must be sterile and should be fluid to the extent that easy syringeability exists. It must be stable under the conditions of manufacture and storage and must be preserved against the contaminating action of microorganisms such as bacteria and fungi.
  • the carrier may be a solvent or dispersion medium containing, for example, water, ethanol, polyol (for example, glycerol, propylene glycol, and liquid polyethylene glycol, and the like), and suitable mixtures thereof.
  • the proper fluidity may be maintained, for example, by the use of a coating such as lecithin, by the maintenance of the required particle size in the case of dispersion and by the use of surfactants.
  • Prevention of the action of microorganisms may be achieved by various antibacterial and antifungal agents, for example, parabens, chlorobutanol, phenol, ascorbic acid, thimerosal, and the like.
  • isotonic agents for example, sugars, polyalcohols such as mannitol and sorbitol, and sodium chloride in the composition.
  • Prolonged absorption of the injectable compositions may be brought about by including in the composition an agent which delays absorption, for example, aluminum monostearate and gelatin.
  • Sterile injectable solutions may be prepared by incorporating the active compound in the required amount in an appropriate solvent with one or a combination of ingredients enumerated above, as required, followed by filtered sterilization.
  • dispersions are prepared by incorporating the active compound into a sterile vehicle that contains a basic dispersion medium and the required other ingredients from those enumerated above.
  • methods of preparation are vacuum drying and freeze-drying that yields a powder of the active ingredient plus any additional desired ingredient from a previously sterile-filtered solution thereof.
  • Oral compositions generally include an inert diluent or an edible pharmaceutically acceptable carrier. They may be enclosed in gelatin capsules or compressed into tablets. For the purpose of oral therapeutic administration, the active compound may be incorporated with excipients and used in the form of tablets, troches, or capsules. Oral compositions may also be prepared using a fluid carrier for use as a mouthwash, wherein the compound in the fluid carrier is applied orally and swished and expectorated or swallowed. Pharmaceutically compatible binding agents, and/or adjuvant materials may be included as part of the composition.
  • the tablets, pills, capsules, troches and the like may contain any of the following ingredients, or compounds of a similar nature: a binder such as microcrystalline cellulose, gum tragacanth or gelatin; an excipient such as starch or lactose, a disintegrating agent such as alginic acid, Primogel, or corn starch; a lubricant such as magnesium stearate or Sterotes; a glidant such as colloidal silicon dioxide; a sweetening agent such as sucrose or saccharin; or a flavoring agent such as peppermint, methyl salicylate, or orange flavoring.
  • a binder such as microcrystalline cellulose, gum tragacanth or gelatin
  • an excipient such as starch or lactose, a disintegrating agent such as alginic acid, Primogel, or corn starch
  • a lubricant such as magnesium stearate or Sterotes
  • a glidant such as colloidal silicon dioxide
  • the active compounds may be prepared with pharmaceutically acceptable carriers that will protect the compound against rapid elimination from the body, such as a controlled release formulation, including implants and microencapsulated delivery systems.
  • a controlled release formulation including implants and microencapsulated delivery systems.
  • Biodegradable, biocompatible polymers may be used, such as ethylene vinyl acetate, polyanhydrides, polyglycolic acid, collagen, polyorthoesters, and polylactic acid. Methods for preparation of such formulations will be apparent to those skilled in the art.
  • Dosage unit form refers to physically discrete units suited as unitary dosages for the subject to be treated; each unit containing a predetermined quantity of active compound calculated to produce the desired therapeutic effect in association with the required pharmaceutical carrier.
  • the specification for the dosage unit forms of the compounds disclosed herein are dictated by and directly dependent on the unique characteristics of the active compound and the particular therapeutic effect to be achieved.
  • the dosages of the pharmaceutical compositions used in accordance with embodiments described herein vary depending on the agent, the age, weight, and clinical condition of the recipient patient, and the experience and judgment of the clinician or practitioner administering the therapy, among other factors affecting the selected dosage.
  • the dose should be sufficient to result in slowing, and preferably regressing, the growth of the tumors and also preferably causing complete regression of the cancer.
  • Dosages may range from about 0.01 mg/kg per day to about 5000 mg/kg per day. In preferred aspects, dosages may range from about 1 mg/kg per day to about 1000 mg/kg per day.
  • the dose will be in the range of about 0.1 mg/day to about 50 g/day; about 0.1 mg/day to about 25 g/day; about 0.1 mg/day to about 10 g/day; about 0.1 mg to about 3 g/day; or about 0.1 mg to about 1 g/day, in single, divided, or continuous doses (which dose may be adjusted for the patient's weight in kg, body surface area in m 2 , and age in years).
  • An effective amount of a pharmaceutical agent is that which provides an objectively identifiable improvement as noted by the clinician or other qualified observer. For example, regression of a tumor in a patient may be measured with reference to the diameter of a tumor. Decrease in the diameter of a tumor indicates regression. Regression is also indicated by failure of tumors to reoccur after treatment has stopped.
  • the term "dosage effective manner" refers to amount of an active compound to produce the desired biological effect in a subject or cell.
  • compositions may be included in a container, pack, or dispenser together with instructions for administration.
  • the compounds described herein, and the pharmaceutically acceptable salts thereof may be used in pharmaceutical preparations in combination with a pharmaceutically acceptable carrier or diluent.
  • suitable pharmaceutically acceptable carriers include inert solid fillers or diluents and sterile aqueous or organic solutions. The compounds will be present in such pharmaceutical compositions in amounts sufficient to provide the desired dosage amount in the range described herein.
  • Exemplary cancers that may be treated using one or more compounds disclosed herein include, but are not limited to, breast cancer, uterine endometrial, ovarian carcinoma, sarcoma, thyroid carcinoma, prostate, lung adenocarcinoma, and hepatocellular carcinoma.
  • the compounds disclosed herein may be useful for treating breast cancer.
  • the breast cancer is ER- ⁇ +.
  • the breast cancer expresses an ER- ⁇ mutation, which may be L536Q ( Robinson et al. Nat Genet. 2013 Dec;45(12 )), L536R ( Toy et al. Nat Genet. 2013 Dec;45(12): 1439-45 ), Y537S ( Toy et al. Nat Genet. 2013 Dec;45(12): 1439-45 ; Robinson et al. Nat Genet. 2013 Dec;45(12 ); Jeselsohn et al. Clin Cancer Res.
  • the compounds disclosed herein may be also useful for additional indications and genotypes.
  • ESR1 mutations (Y537C/N) were recently discovered in 4 of 373 cases of endometrial cancers ( Kandoth et al. Nature 2013 May 2;497(7447):67-73 ; Robinson et al. Nat Genet. 2013 Dec;45(12 )). Since it has been shown that ESR1 mutations Y537C/N significantly drive resistance to currently marketed SOC therapies, the compounds disclosed herein may be useful for treating ER ⁇ MUT endometrial cancers.
  • Exemplary cell proliferative disorders that may be treated using one or more compounds disclosed herein include, but are not limited to breast cancer, a precancer or precancerous condition of the breast, benign growths or lesions of the breast, and malignant growths or lesions of the breast, and metastatic lesions in tissue and organs in the body other than the breast.
  • Cell proliferative disorders of the breast may include hyperplasia, metaplasia, and dysplasia of the breast.
  • a breast cancer that is to be treated may arise in a male or female subject.
  • a breast cancer that is to be treated may arise in a premenopausal female subject or a postmenopausal female subject.
  • a breast cancer that is to be treated may arise in a subject 30 years old or older, or a subject younger than 30 years old.
  • a breast cancer that is to be treated has arisen in a subject 50 years old or older, or a subject younger than 50 years old.
  • a breast cancer that is to be treated may arise in a subject 70 years old or older, or a subject younger than 70 years old.
  • a compound disclosed herein, or a pharmaceutically acceptable salt thereof may be used to treat or prevent a cell proliferative disorder of the breast, or to treat or prevent breast cancer, in a subject having an increased risk of developing breast cancer relative to the population at large, or used to identify suitable candidates for such purposes.
  • a subject with an increased risk of developing breast cancer relative to the population at large is a female subject with a family history or personal history of breast cancer.
  • a subject with an increased risk of developing breast cancer relative to the population at large is a female who is greater than 30 years old, greater than 40 years old, greater than 50 years old, greater than 60 years old, greater than 70 years old, greater than 80 years old, or greater than 90 years old.
  • a cancer that is to be treated may include a tumor that has been determined to be less than or equal to about 2 centimeters in diameter.
  • a cancer that is to be treated may include a tumor that has been determined to be from about 2 to about 5 centimeters in diameter.
  • a cancer that is to be treated may include a tumor that has been determined to be greater than or equal to about 3 centimeters in diameter.
  • a cancer that is to be treated may include a tumor that has been determined to be greater than 5 centimeters in diameter.
  • a cancer that is to be treated may be classified by microscopic appearance as well differentiated, moderately differentiated, poorly differentiated, or undifferentiated.
  • a cancer that is to be treated may be classified by microscopic appearance with respect to mitosis count (e.g., amount of cell division) or nuclear pleiomorphism (e.g., change in cells).
  • a cancer that is to be treated may be classified by microscopic appearance as being associated with areas of necrosis (e.g., areas of dying or degenerating cells).
  • a cancer that is to be treated may be classified as having an abnormal karyotype, having an abnormal number of chromosomes, or having one or more chromosomes that are abnormal in appearance.
  • a cancer that is to be treated may be classified as being aneuploid, triploid, tetraploid, or as having an altered ploidy.
  • a cancer that is to be treated may be classified as having a chromosomal translocation, or a deletion or duplication of an entire chromosome, or a region of deletion, duplication or amplification of a portion of a chromosome.
  • the compounds, or pharmaceutically acceptable salts thereof may be administered orally, nasally, transdermally, pulmonary, inhalationally, buccally, sublingually, intraperintoneally, subcutaneously, intramuscularly, intravenously, rectally, intrapleurally, intrathecally and parenterally.
  • the compound is administered orally.
  • One skilled in the art will recognize the advantages of certain routes of administration.
  • the dosage regimen utilizing the compounds may be selected in accordance with a variety of factors including type, species, age, weight, sex and medical condition of the patient; the severity of the condition to be treated; the route of administration; the renal and hepatic function of the patient; and the particular compound or salt thereof employed.
  • An ordinarily skilled physician or veterinarian may readily determine and prescribe the effective amount of the drug required to prevent, counter, or arrest the progress of the condition.
  • Step-1 To a stirred solution of 5-bromo-1 H -indazole ( 201 , 23.5 mmol) in dry dichloromethane (50 mL) at 23 °C was added dihydro pyran (9.9 g, 118 mmol) followed by addition of pyridinium p -toluene sulfonate (0.6 g, 2.4 mmol). The resulting mixture was stirred at room 23 °C temperature for 16 h. Upon completion by TLC, the reaction mixture was quenched with water (50 mL) and extracted with dichloromethane (2 x 100 mL). The combined organic extracts were washed with water, brine, dried over sodium sulphate and concentrated.
  • Step-2a To a stirred solution of 5-bromo-1-(tetrahydro-2 H -pyran-2-yl)-1 H -indazole ( 202 , 3.6 mmol) in 10 mL of MeOH:DMA:H 2 O (1:1:1), in a sealed tube, were added copper iodide (0.068 g, 0.3 mmol) and cesium carbonate (1.62 g, 4.9 mmol) at 23 °C.
  • Step-2b To a stirred solution of 5-bromo-3-fluoro-1-(tetrahydro-2 H -pyran-2-yl)-1 H- indazole ( 202 , 2.5 g, 8.3 mmol) in 30 mL of DMA, in a sealed tube, were added copper iodide (79 mg, 0.41 mmol) and cesium carbonate (4 g, 12.4 mmol) at room temperature.
  • reaction mixture was degassed with three vacuum/N 2 cycles, (cyclobutylethynyl)trimethylsilane ( 203 , 1.78 g, 11.74 mmol) followed by Pd(OAc) 2 (92 mg, 0.41 mmol) and dppf (228 mg, 0.041 mmol) were added.
  • the pressure tube was sealed and heated at 90°C for 2 h.
  • the reaction mixture was cooled to room temperature and diluted with water (25 mL), extracted with ethyl acetate (100 mL). The combined organic extracts were washed with water followed by brine. The organic layer was dried over anhydrous sodium sulphate and concentrated under reduced pressure.
  • Step-3 To a stirred solution of 204 (39.37 mmol) in 2-methyl THF (80 mL), was added bis(pinacolato) diboron (10.09 g, 39.76 mmol), tetrakis(triphenylphosphine)platinum(0) (372 mg, 0.299 mmol) under nitrogen atmosphere, reaction mixture was refluxed for 6 h. After completion of reaction, reaction mixture was diluted with water and extracted with EtOAc. The Organic layer was dried over anhydrous sodium sulphate and concentrated under reduced pressure. The crude material was used in next step without furth er pu rification ( 206 , 39 mmol, quantitative) as brown color oil.
  • Step-4 To a stirred solution of 207 (2.34 g, 10.61 mmol), bis(triphenylphosphine) palladium(II) dichloride (372 mg, 0.530 mmol), cesium carbonate (6.9 g, 21.23 mmol) and 2-methyl THF (60 mL) were added. This mixture was degassed with nitrogen and water (5 mL) was added. This mixture was stirred at room temperature for 12 h. After completion of reaction, reaction mixture was diluted with water and extracted with EtOAc. The Organic layer was dried over anhydrous sodium sulphate and concentrated under reduced pressure. The crude material was purified by column chromatography over 230-400 mesh silica gel using MeOH in dichloromethane (1.6:98.4) to afford 208 (5.5 mmol, 43%).
  • Step-5 To a stirred solution of 208 (1.8 mmol) in 2-methyl THF (30 mL), iodobenzene ( 209 , 1.8 mmol), 4M aqueous KOH (5 mL) and Pd(PPh 3 ) 2 Cl 2 (63 mg, 0.09 mmol) were added and the mixture was degassed with nitrogen for 15 min and heated at 80 - 90°C for 8 - 12 h. Upon completion, the reaction mixture was diluted with EtOAc. Organic layer was washed with water followed by brine, dried over anhydrous sodium sulphate, filtered and concentrated. The crude product was purified by silica gel chromatography (2:8 EtOAc in n- hexane) to give a desired prodcut ( 211 , 0.74 mmol, 41%).
  • Step-6 To a solution of 5-(but-1-yn-1-yl)-1-(tetrahydro-2 H -pyran-2-yl)-1 H -indazole ( 204, 27.5 mmol), iodobenzene ( 209 , 17 g, 82.7 mmol), 4-hydroxy phenyl boronic acid ( 210 , 11.4 g, 82.7 mmol), in N,N- dimethyl formamide/water (2:1, 50 mL) was added K 2 CO 3 (11.4 g, 82.7 mmol). The contents were degassed with three vacuum/N 2 cycles, and then heated at 45 °C for 1 h until the solution was homogeneous.
  • Step-1 To a solution of 211a (3.4 mmol) in DMF (30 mL), at 0 °C, were added sequentially potassium carbonate (1.4 g, 10.1 mmol) and tert-butyl (2-bromoethyl)- carbamate ( 212 , 8.5 mmol). The reaction mixture was stirred at 80°C for 16 h, was diluted with ethyl acetate, washed with water, brine, dried over sodium sulphate and concentrated under reduced pressure.
  • the crude material was purified by column chromatography over 230-400 mesh silica gel using 15% ethyl acetate in n -hexane to afford the desired prodcut ( 211b , 1.8 mmol , 53%) as a light brown colour gummy mass.
  • Step-2a To a stirred solution of 211b (2.5 mmol) in ethanol (10 mL) was added at 0 °C, 2M HCl in ether (10 mL). The reaction mixture was stirred for 16-24 h at 23°C. After completion of reaction, reaction mixture was basified with saturated NaHCO 3 , extracted with 10% MeOH in dichloromethane. Organic layer was concentrated under reduced pressure and the crude material was purified by column chromatography over 230-400 mesh silica gel using (4-5%) MeOH in DCM to afford the desire product ( 13 , 1.25 mmol, 50%) as a brown coloured semi solid.
  • Step-2b To a stirred solution of 211 (1.5 g, 2.3 mmol) in ethanol (3 mL) was added at 0 °C, 2M HCl in ditheyl ether (15 mL). The reaction mixture was stirred for 24 h at room temperature. After completion of reaction, reaction mixture was basified with saturated NaHCO 3 , extracted with ethyl acetate. Organic layer was concentrated under reduced pressure to afford crude desired product ( 213 , 1.1 g crude).
  • Step-3a To a stirred solution of 213 (1.24 mmol) in DMF (5 mL) was added at 0 °C, ( E )-4-bromo- N , N -dimethylbut-2-enamide ( 214 , 1.24 mmol) and DIPEA (0.321 g, 2.49 mmol). The reaction mixture was stirred for12- 48 h at 23°C, was diluted with cold water (50 mL) and extracted with dichloromethane. The organic layer was washed with water followed by brine, dried over anhydrous sodium sulphate and concentrated under reduced pressure to give a crude mixture of 215 .
  • Step-3b To a stirred solution of 213 (1.1 g, 2 mmol) in DMF (22 mL) was added DIPEA (0.62 g, 4 mmol) at room temperature, stirred for 15 min at same temperature. A solution of (E)-4-bromo- N,N -dimethylbut-2-enamide and ( E )-4-chloro- N,N -dimethylbut-2-enamide mixture ( 214 , 0.41 g, 2 mmol) in DMF (5 mL) was added drop wise, reaction mixture was stirred for 16 h at room temperature, after completion of reaction (monitored by TLC), reaction mixture was diluted with cold water (50 mL) and extracted with dichloromethane. The organic layer was washed with water followed by saturated NaCl solution, dried over anhydrous sodium sulphate and concentrated under reduced pressure to deliver crude product 215 (1.8 g).
  • Step-4 The crude material obtained from previous step was purified by preparative HPLC to afford pure isomer 216 (0.06 mmol, 5%) as a white solid.
  • the 1 H NMR, HPLC and MS data were collected.
  • Step-5 To a stirred solution of 215 (1.25 mmol) in DCM (10 mL) was added di-tert-butyl dicarbonate (0.546 g, 2.5 mmol). The reaction mixture was stirred for 1 h at 23 °C, after completion of reaction, reaction mixture was diluted with cold water (50 mL) and extracted with dichloromethane (100 mL). The organic layer was washed with water followed by brine, dried over anhydrous sodium sulphate and concentrated under reduced pressure. Crude compound was purified by column chromatography using 2% MeOH in DCM to afford 211c (0.63 mmol, 50%) as a light brown semi-solid.
  • Step-6a To a stirred solution of 211c (0.622 mmol) in MeOH (5 mL) was added at 0 °C, 2M HCl in ether (10 mL). The reaction mixture was stirred for 16 h at 23 °C. After completion of reaction, reaction mixture was basified with saturated NaHCO 3 , extracted with 10% MeOH in DCM. Organic layer was concentrated under reduced pressure to obtain crude compound ( 215 , 0.07 mmol) as an off-white solid. Crude compound was purified by preparative HPLC to afford desired pure isomer ( 216 , 0.03 mmol, 4.1%) as an white solid. The 1 H NMR, HPLC and MS data were collected.
  • Step-6b To a stirred solution of 211c (0.081 mmol) in dichloromethane (1.2 mL) at 0 °C, was added TFA (0.3 mL). The reaction mixture was stirred at 23 °C for 30 min to 2 h. After completion of reaction, the solution was basified with saturated NaHCO 3 solution and extracted with dichloromethane. Combined organic layer was dried over anhydrous soldium sulfate and concentrated under reduced pressure. The crude material was purified by preparative HPLC to afford desired pure isomer ( 216 , 0.12 mmol, 33.3%) as an white solid. The 1 H NMR, HPLC and MS data were collected.
  • Step-6c To a stirred solution of 211c (0.504 mmol) in EtOH (3 mL) was added at 0 °C, 2M HCl in diethyl ether (5 mL). The reaction mixture was stirred for 12 h at room temperature. After completion of reaction (monitored by TLC), reaction mixture was basified with saturated NaHCO 3 solution at 0 °C, extracted with 10% MeOH in dichloromethane. The organic layer was washed with water, saturated NaCl solution and concentrated under reduced pressure to obtain crude compound, crude compound was purified by preparative TLC to afford desired compound 216 (74 mg, 27%).
  • Step-1 To a stirred solution of 4-iodophenol ( 207a , 227 mmol) in DMF (750 mL) was added potassium carbonate (188 g, 1.363 mol) and stirred for 30 min at 23°C, to the above mixture tert-butyl (2-bromoethyl)carbamate ( 212 , 71.27 g, 318 mmol) was added. The contents were stirred at 70°C for 12 h.
  • reaction mixture was poured onto ice cold water, solid separated was filtered and dried under reduced pressure to obtain desired compound tert-butyl (2-(4-iodophenoxy)- ethyl)carbamate as an off-white solid ( 207b , 220 mmol, 97%).
  • Step-2 To a stirred solution of tert-butyl (2-(4-iodophenoxy)ethyl)carbamate ( 207b , 68.6 mmol) in ethanol (50 mL) was added at 0 °C, 2M HCl in ether (250 mL). The reaction mixture was stirred for 12 h at 23°C. After completion of reaction, reaction mixture was basified with saturated NaHCO 3 , extracted with 10% MeOH in DCM. Organic layer was concentrated under reduced pressure and the crude material was used in next step without further purification ( 217 , 60 mmol, 88%).
  • Step-3 To a stirred solution of 2-(4-iodophenoxy)ethan-1-amine ( 217 , 60.6 mmol) in DMF (65 mL) was added at 0 °C, 4-bromo- N,N -dimethylbut-2-enamide ( 214 , 42.4 mmol) and DIPEA (11.72 g, 90.9 mmol). The reaction mixture was stirred for 5 h at room temperature, was diluted with cold water (250 mL) and extracted with dichloromethane. The organic layer was washed with water followed by brine, dried over anhydrous sodium sulphate and concentrated under reduced pressure. The crude material was used in next step without further purification ( 218 , 50 mmol, 83%, crude).
  • Step-4 To a stirred solution of 218 (50.26 mmol) in dry dichloromethane (150 mL) was added DIPEA (6.4g, 50.2 mmol) at 0 °C, stirred for 15 min at 0 °C. To the above reaction mixture, was added di-tert-butyl dicarbonate (13.1 g, 60.3 mmol), resulting mixture was stirred at 23°C for 12 h. Upon completion by TLC, the reaction mixture was cooled to 0°C, quenched with ice cold water (500 mL) and extracted with dichloromethane (500 mL). The combined organic extracts were washed with water, followed by brine, dried over anhydrous sodium sulphate and concentrated under reduced pressure. The crude material was purified by column chromatography over 230-400 mesh silica using 3% MeOH in dichloromethane as an eluent to afford 207c (19 mmol, 37.8%).
  • Step-1 To a stirred solution of but-2-enoic acid ( 219 , 116.0 mmol) in benzene (150 mL) was added N -Bromo succinamide (31.4 g, 120.0 mmol) followed by Benzoyl peroxide (0.200 g, 1.4 mmol) at 23°C. The reaction mixture was heated to reflux for 4 h, which resulted in precipitation of succinamide crystals. The crystals were filtered off and the filtrate was concentrated. The crude was recrystallized with minimum amount of hexane and washed with hexane to afford 4-bromobut-2-enoic acid ( 220 , 42.5 mmol, 37 %) as a white solid.
  • Step-2 bromobut-2-enoic acid ( 220, 9 mmol) was taken in dichloromethane (30 mL) and cooled to 0 °C. To this solution oxalyl chloride (1.6 mL, 18 mmol), DMF (0.1 mL) were added and stirred for 0.5 h at 23°C. The reaction mixture was concentrated under nitrogen atmosphere, residue was diluted with THF (30 mL), cooled to 0 °C and was basified with DIPEA (3.1 mL, 18 mmol). To this mixture, an amine ( 221 , 9 mmol) was added slowly as a solution in dichloromethane and the contents were stirred at 23°C for 1h.
  • the compound shown here in Scheme 5 may be prepared by using the process as outlined in Scheme 3 by substituting the appropriate pyridyl for compound 207a .
  • Step-1 Synthesis of 5-bromo-1-(tetrahydro-2H-pyran-2-yl)-1H-indazole
  • Step-3 Synthesis of 5-(but-1-yn-1-yl)-1-(tetrahydro-2H-pyran-2-yl)-1H-indazole
  • Step-4 Synthesis of (E)-4-(2-phenyl-1-(1-(tetrahydro-2H-pyran-2-yl)-1H-indazol-5-yl)but-1-en-1-yl)phenol
  • Step-5 Synthesis of (E)-2-(2-(4-(2-phenyl-]-(1-(tetrahydro-2H-pyran-2-yl)-1H-indazol-5-yl) but-1-en-1-yl) phenoxy) ethyl) isoindoline-1,3-dione
  • Step-6 Synthesis of (E)-2-(4-(2-phenyl-1-(1-(tetrahydro-2H-pyran-2-yl)-1H-indazol-5-yl) but-1-en-1-yl ) phenoxy ) ethan-1-amine
  • Step-7 Synthesis of (E)-4-bromo-N,N-dimethylbut-2-enamide
  • Step-8 Synthesis of (E)-N,N-dimethyl-4-((2-(4-((E)-2-phenyl-1-(1-(tetrahydro-2H-pyran-2-yl)-1H-indazol-5-yl) but-1-en-1-yl) phenoxy) ethyl) amino) but-2-enamide
  • Step-9 Synthesis of (E)-4-((2-(4-((E)-1-(1H-indazol-5-yl)-2-phenylbut-1-en-1-yl)phenoxy)ethyl)amino)-N, N-dimethylbut-2-enamide (Compound 1)
  • Step-1A Synthesis of 5-bromo-1- ( tetrahydro-2H-pyran-2-yl)-1H-indazole )
  • Step-2A Synthesis of (E)-4-bromobut-2-enoic acid
  • Step-3A Synthesis of (E)-4-bromo-N,N-dimethylbut-2-enamide
  • Step-5A Synthesis of 1-[4-(2-Chloroethoxy)phenyl]-2-phenyl-1-butanone
  • Step-6A Synthesis of 1-(4-(2-chloroethoxy)phenyl)-2-phenyl-1-(1-(tetrahydro-2H-pyran-2-yl)-1H-indazol-5-yl)butan-1-ol
  • Step-7A Synthesis of (E)-5-(1-(4-(2-chloroethoxy)phenyl)-2-phenylbut-1-en-1-yl)-1H-indazole
  • Step-8A Synthesis of (E)-5 -( 1-(4-(2-chloroethoxy)phenyl)-2-phenylbut-1-en-1-yl)-1-(tetrahydro-2H-pyran-2-yl)-1H-indazole
  • Step-9A Synthesis of (E)-2-(2-(4--(1-(tetrahydro-2H-pyran-2-yl)-1H-indazol-5-yl)but-1-en-1-yl)phenoxy)ethyl)isoindoline-1,3-dione
  • Step-10A Synthesis of (E)-2-(4-(2-phenyl-1-(1-(tetrahydro-2H-pyran-2-yl)-1H-indazol-5-yl)but-1-en-1-yl)phenoxy)ethan-1-amine
  • Step-11A Synthesis of (E)-2-(4-(2-phenyl-1-(1-(tetrahydro-2H-pyran-2-yl)-1H-indazol-5-yl)but-1-en-1-yl)phenoxy)ethan-1-amine succinate salt
  • Step-12A Synthesis of (E)-2-(4-(2-phenyl-1-(1-(tetrahydro-2H-pyran-2-yl)-1H-indazol-5-yl)but-1-en-1-yl)phenoxy)ethan-1-amine
  • Step-13A Synthesis of (E)-NN-dimethyl-4-((2-(4-((E)-2-phenyl-1-(1-(tetrahydro-2H-pyran-2-yl)-1H-indazol-5-yl)but-1-en-1-yl)phenoxy ) ethyl)amino)but-2-enamide
  • Boc anhydride (1.05 Kg, 4.81 mol, 1.5 equiv) in DCM (2 L), and stirred for 4-5hr. After completion of the reaction, it was quenched with water, DCM layer was separated, washed with brine and dried over anhydrous sodium sulphate and concentrated under reduced pressure to desired crude compound which was purified by 60-120 mesh silica gel using 0-20 ethyl acetate in hexane to get (1.23 Kg, 55.3 % Yield, 94.3 % HPLC of desired product and 2.1 % Other isomer.
  • Step-14A Synthesis of tert-butyl ((E)-4-(dimethylamino)-4-oxobut-2-en-1-yl)(2-(4-((E)-2-phenyl-1-(1-(tetrahydro-2H-pyran-2-yl)-1H-indazol-5-yl)but-1-en-1-yl)phenoxy)ethyl)carbamate
  • reaction mixture was basified with sodium carbonate solution at 10-15°C and the obtained product was extracted with 21*3 of ethyl acetate, washed with water and dried over anhydrous sodium sulphate and concentrated under reduced to get the desired product (1.0 Kg, 80 % Yield, 98.22 %HPLC purity)
  • Step-15A Synthesis of (E)-4-((2-(4-((E)-1-(1H-indazol-5-yl)-2-phenylbut-1-en-1-yl)phenoxy)ethyl) amino)-N,N-dimethylbut-2-enamide hydrochloride
  • Step-2 Synthesis of 5-bromo-3-fluoro-1-(tetrahydro-2H-pyran-2-yl)-1H-indazole
  • Step-3 Synthesis of 5-(but-1-yn-1-yl)-3-fluoro-1-(tetrahydro-2H-pyran-2-yl)-1H-indazole
  • Step-4 Synthesis of (E)-4-(1-(3-fluoro-1-(tetrahydro-2H-pyran-2-yl)-1H-indazol- 5-yl)-2-phenylbut-1-en-1-yl)phenol
  • Step-5 Synthesis of tert-butyl (E)-(2-(4-(1-(3-fluoro-1-(tetrahydro-2H-pyran-2-yl)-1H-indazol-5-yl)-2-phenylbut-1-en-1-yl)phenoxy)ethyl)carbamate
  • Step-6 Synthesis of (E)-2-(4-(1-(3-fluoro-1H-indazol-5-yl)-2-phenylbut-1-en-1-yl)phenoxy)ethanamine
  • Step-7 Synthesis of (E)-4-((2-(4-((E)-1-(3-fluoro-1H-indazol-5-yl)-2-phenylbut-1- en-1-yl)phenoxy) ethyl)amino)-N,N-dimethylbut-2-enamide (Compound 2)
  • Step-1 Synthesis of (Z)-5-(1,2-bis(4,4,5,5-tetramethyl-1,3,2-dioxaborolan-2-yl)but-1-en-1-yl)-3-fluoro-1-(tetrahydro-2H-pyran-2-yl)-1H-indazole
  • Step-2 Synthesis of tert-butyl (2-(4-iodophenoxy)ethyl)carbamate
  • Step-3 Synthesis of tert-butyl (Z)-(2-(4-(1-(3-fluoro-1-(tetrahydro-2H-pyran-2-yl)-1H-indazol-5-yl)-2-(4,4,5,5-tetramethyl-1,3,2-dioxaborolan-2-yl)but-1-en-1-yl)phenoxy)ethyl)carbamate
  • Step-4 Synthesis of tert-butyl (E)-(2-(4-(1-(3-fluoro-1-(tetrahydro-2H-pyran-2-yl)-1H-indazol-5-yl)-2-(3-fluoro-5-(trifluoromethyl)phenyl)but-1-en-1-yl)phenoxy)ethyl)carbamate
  • Step-5 Synthesis of (E)-2-(4-(1-(3-fluoro-1H-indazol-5-yl)-2-(3-fluoro-5-(trifluoromethyl)phenyl)but-1-en-1-yl)phenoxy)ethan-1-amine
  • Step-6 Synthesis of (E)-4-((2-(4-((E)-1-(3-fluoro-1H-indazol-5-yl)-2- ( 3fluoro-5-(trifluoromethyl)phenyl)but-1-en-1-yl)phenoxy)ethyl)amino)-N,N-dimethylbut-2-enamide (Compound 3).
  • Step-1 Synthesis of tert-butyl (E)-(2-(4-(2-(3,5-difluorophenyl)-1-(1-(tetrahydro-2H-pyran-2-yl)-1H-indazol-5-yl)but-1-en-1-yl)phenoxy)ethyl)carbamate
  • reaction mixture was allowed to cool to 4 °C and tert -butyl (2-(4-iodophenoxy)ethyl)carbamate (571 mg, 1.574 mmol, Example 3, Step-2), bis(triphenylphosphine)palladium(II) dichloride (55 mg, 0.078 mmol), cesium carbonate (1.023 g, 3.140 mmol) and 2-methyl THF (5 mL) were added. This mixture was degassed with nitrogen and water (1.2 mL) was added. Reaction mixture was stirred at room temperature for 16 h.
  • Step-2 Synthesis of (E)-2-(4-(2-(3,5-difluorophenyl)-1-(1H-indazol-5-yl)but-1-en-1-yl)phenoxy)ethan-1-amine
  • Step-3 Synthesis of (E)-4-((2-(4-((E)-2-(3,5-difluorophenyl)-1-(1H-indazol-5-yl)but-1-en-1-yl)phenoxy)ethyl)amino)-N,N-dimethylbut-2-enamide (Compound 5)
  • Step-1 Synthesis of tert-butyl (E)-(2-(4-(2-(3,4-difluorophenyl)-1-(1-(tetrahydro-2H-pyran-2-yl)-1H-indazol-5-yl)but-1-en-1-yl)phenoxy)ethyl)carbamate
  • Step-1 Synthesis of (E)-4-bromo-N-methyl-N-(prop-2-yn-1-yl)but-2-enamide
  • Step-2 Synthesis of N-methylbut-3-yn-1-amine
  • But-3-yn-1-yl 4-methylbenzenesulfonate (10 g, 44.6 mmol) was added to 40% aqueous methylamine (30 mL). The contents were heated at 70 °C under nitrogen for 2 h. After completion of reaction, reaction mixture was cooled to room temperature, the volatiles removed under vacuum and extracted with dichloromethane (250 mL). The organic layer was washed with water, brine and dried over anhydrous sodium sulphate. Organic layer was dried under reduced pressure to give N -methylbut-3-yn-1-amine (3.7 g, crude).
  • Step-4 Synthesis of tert-butyl (2-(4-(2-phenyl-1-(1-(tetrahydro-2H-pyran-2-yl)-1H-indazol-5-yl)but-1-en-1-yl)phenoxy)ethyl)carbamate
  • Step-5 Synthesis of 2-(4-(1-(1H-indazol-5-yl)-2-phenylbut-1-en-1-yl)phenoxy)ethan-1-amine
  • Step-1 Synthesis of (E)-1-(azetidin-1-yl)-4-bromobut-2-en-1-one
  • Step-1 Synthesis of (E)-4-bromo-1-(pyrrolidin-1-yl)but-2-en-1-one
  • Step-1 Synthesis of (E)-4-bromo-1-(piperidin-1-yl)but-2-en-1-one
  • Step-2 Synthesis of (2E)-4-((2-(4-(1-(1H-indazol-5-yl)-2-phenylbut-1-en-1-yl)phenoxy)ethyl)amino)-1-(piperidin-1-yl)but-2-en-1-one
  • Step-3 Synthesis of tert-butyl (2-(4-(1-(1H-indazol-5-yl)-2-phenylbut-1-en-1-yl)phenoxy)ethyl)((E)-4-oxo-4-(piperidin-1-yl)but-2-en-1-yl)carbamate
  • Step-4 Synthesis of (E)-4-((2-(4-((E)-1-(1H-indazol-5-yl)-2-phenylbut-1-en-1-yl)phenoxy)ethyl)amino)-1-(piperidin-1-yl)but-2-en-1-one (Compound 12)
  • Step-2 Synthesis of ( cyclobutylethynyl)trimethylsilane
  • Step-3 Synthesis of 5-(cyclobutylethynyl)-1-(tetrahydro-2H-pyran-2-yl)-1H-indazole
  • Step-4 Synthesis of (Z)-5-(2-cyclobutyl-1,2-bis(4,4,5,5-tetramethyl-1,3,2-dioxaborolan-2-yl)vinyl)-1-(tetrahydro-2H-pyran-2-yl)-1H-indazole
  • Step-5 Synthesis of tert-butyl (Z)-(2-(4-(2-cyclobutyl-1-(1-(tetrahydro-2H-pyran-2-yl)-1H-indazol-5-yl)-2-(4,4,5,5-tetramethyl-1,3,2-dioxaborolan-2-yl)vinyl)phenoxy)-ethyl)carbamate
  • Step-6 Synthesis of tert-butyl (E)-(2-(4-(2-cyclobutyl-2-pheityl-6-(1-(tetrahydro-2H-pyran-2-yl)-1H-indazol-5-yl)vinyl)phenoxy)ethyl)carbamate
  • Step-7 Synthesis of (E)-2-(4-(2-cyclobutyl-1-(1H-indazol-5-yl)-2-phenylvinyl) phenoxy)ethan-1-amine
  • Step-8 Synthesis of (E)-4-((2-(4-((E)-2-cyclobutyl-1-(1H-indazol-5-yl)-2-phenylvinyl)phenoxy) ethyl) amino)-N,N-dimethylbut-2-enamide (Compound 13).
  • Step-1 Synthesis of 5-(cyclobutylethynyl)-3-fluoro-1-(tetrahydro-2H-pyran-2-yl)-1H-indazole
  • Step-2 Synthesis of (Z)-5-(2-cyclobutyl-1,2-bis(4,4,5,5-tetramethyl-1,3,2-dioxaborolan-2-yl)vinyl)-3-fluoro-1-(tetrahydro-2H-pyran-2-yl)-1H-indazole
  • Step-3 Synthesis of tert-butyl (E)-(4-(dimethylamino)-4-oxobut-2-en-1-yl)(2-(4-iodophenoxy)ethyl)carbamate
  • Step-3.2 Synthesis of (E)-4-((2-(4-iodophenoxy)ethyl)amino)-N,N-dimethylbut-2- enamide
  • Step-3.3 Synthesis of tert-butyl (E)-(4-(dimethylamino)-4-oxobut-2-en-1-yl)(2-(4-iodophenoxy)ethyl)carbamate
  • Step-4 Synthesis of tert-butyl (2-(4-((E)-2-cyclobutyl-1-(3-fluoro-1-(tetrahydro-2H-pyran-2-yl)-1H-indazol-5-yl)-2-phenylvinyl)phenoxy)ethyl)((E)-4-(dimethylamino)-4-oxobut-2-en-1-yl)carbamate
  • Step-5 Synthesis of (E)-4-((2-(4-((E)-2-cyclobutyl-1-(3-fluoro-1H-indazol-5-yl)-2-phenylvinyl)phenoxy) ethyl)amino)-N,N-dimethylbut-2-enamide 2,2,2-trifluoroace- tate (Compound 14)
  • Step-1 Synthesis of (Z)-5-(1,2-bis(4,4,5,5-tetramethyl-1,3,2-dioxaborolan-2-yl)but-1-en-1-yl)-1-(etrahydro-2H-pyran-2-yl)-1H-indazole
  • Example 20 There is no Example 20.
  • Step-1 synthesis of ethyl (E)-4-hydroxy-3-methylbut-2-enoate
  • Step-2 synthesis of ethyl (E)-4-bromo-3-methylbut-2-enoate
  • Step-3 Synthesis of ethyl (E)-4-((2-(4-iodophenoxy)ethyl)amino)-3-methylbut-2-enoate
  • Step-4 Synthesis of ethyl (E)-4-((tert-butoxycarbonyl)(2-(4-iodophenoxy)-ethyl)amino)but-2-enoate
  • Step-5 Synthesis of (E)-4-((tert-butoxycarbonyl)(2-(4-iodophenoxy)ethyl)amino)-3-methylbut-2-enoic acid
  • Step-6 Synthesis of tert-butyl (E)-(4-(dimethylamino)-2-methyl-4-oxobut-2-en-1-yl)(2-(4-iodophenoxy)ethyl)carbamate
  • Step-2 Synthesis of 2-((2-(4-iodophenoxy)ethyl)amino)ethan-1-ol
  • Step-3 Synthesis of tert-butyl (2-hydroxyethyl)(2-(4-iodophenoxy)ethyl)carbamate
  • Step-4 Synthesis of tert-butyl (2-(4-iodophenoxy)ethyl)(2-oxoethyl)carbamate
  • Step-5 Synthesis of ethyl ethyl (Z)-4-((tert-butoxycarbonyl)(2-(4-iodophenoxy)ethyl)amino)but-2-enoate
  • Step-6 Synthesis of (Z)-4-((tert-butoxycarbonyl)(2-(4-iodophenoxy)ethyl)amino) but-2-enoic acid
  • Step-7 Synthesis of tert-butyl (Z)-(4-(dimethylamino)-4-oxobut-2-en-1-yl)(2-(4-iodophenoxy)ethyl)carbamate
  • Step-1 Synthesis of 5-bromo-4-fluoro-1-(tetrahydro-2H-pyran-2-yl)-1H-indazole
  • Step-1 Synthesis of tert-butyl (2-((5-iodopyridin-2-yl)oxy)ethyl)carbamate
  • Step-2 Synthesis of tert-butyl (E)-(4-(dimethylamino)-4-oxobut-2-en-1-yl)(2-((5-iodopyridin-2-yl)oxy)ethyl)carbamate
  • Step-1 Synthesis of (E)-5-(1-(4-(2-chloroethoxy)phenyl)-2-(o-tolyl)but-1-en-1-yl)-1-(tetrahydro-2H-pyran-2-yl)-1H-indazole
  • Step-2 Synthesis of (E)-2-((2-(4-(1-(1-(tetrahydro-2H-pyran-2-yl)-1H-indazol-5-yl)-2-(o-tolyl)but-1-en-1-yl)phenoxy)ethyl)amino)ethan-1-ol
  • Step-3 Synthesis of tert-butyl (E)-(2-hydroxyethyl)(2-(4-(1-(1-(tetrahydro-2H-pyran-2-yl)-1H-indazol-5-yl)-2-(o-tolyl)but-1-en-1-yl)phenoxy)ethyl)carbamate
  • Step-4 Synthesis of tert-butyl (E)-(2-oxoethyl)(2-(4-(1-(1-(tetrahydro-2H-pyran-2-yl)-1H-indazol-5-yl)-2-(o-tolyl)but-1-en-1-yl)phenoxy)ethyl)carbamate
  • Step-5 Synthesis of ethyl (E)-4-((tert-butoxycarbonyl)(2-(4-((E)-1-(1-(tetrahydro-2H-pyran-2-yl)-1H-indazol-5-yl)-2-(o-tolyl)but-1-en-1-yl)phenoxy)ethyl)amino)but-2-enoate
  • Step-6 Synthesis of (E)-4-((tert-butoxycarbonyl)(2-(4-((E)-1-(1-(tetrahydro-2H-pyran-2-yl)-1H-indazol-5-yl)-2-(o-tolyl)but-1-en-1-yl)phenoxy)ethyl)amino)but-2-enoicacid
  • reaction mixture was stirred for 60 h at room temperature, after completion of reaction (monitored by TLC), reaction mixture was diluted with water and extracted with dichloromethane (100 mL). The organic layer was washed with water followed by saturated NaCl solution, dried over anhydrous Na 2 SO 4 and concentrated under reduced pressure. The crude product was purified by combi-flash to afford title compound of Ex. 26 Step-7 (0.33 g, 91%).
  • Step-8 Synthesis of tert-butyl ((E)-4-((2-hydroxyethyl)(methyl)amino)-4-oxobut-2-en-1-yl)(2-(4-((E)-1-(1-(tetrahydro-2H-pyran-2-yl)-1-indazol-5-yl)-2-(o-tolyl)but-1-en-1-yl)phenoxy)ethyl)carbamate
  • reaction mixture was stirred for 3 h at room temperature, after completion of reaction (monitored by TLC), reaction mixture was diluted with water and extracted with dichloromethane (100 mL). The organic layer was washed with water followed by saturated NaCl solution, dried over anhydrous Na 2 SO 4 and concentrated under reduced pressure. The crude product was purified by column chromatography over 230-400 mesh silica-gel by eluting with 3% MeOH in dichloromethane to afford title compound of Ex. 26 Step-8 (0.4 g, crude).
  • Step-9 Synthesis of (E)-4-((2-(4-((E)-1-(1H-indazol-5-yl)-2-(o-tolyl)but-1-en-1-yl)phenoxy)ethyl)amino)-N-(2-hydroxyethyl)-N-methylbut-2-enamide (Compound 26)
  • Example 27 There is no Example 27.
  • Step-1 Synthesis of (E)-4-((2-(4-((E)-2-(2-chloro-4-fluorophenyl)-1-(3-fluoro-1H-indazol-5-yl)but-1-en-1-yl)phenoxy)ethyl)amino)-N-(2-hydroxyethyl)-N-methylbut-2-enamide
  • Step-2 Synthesis of tert-butyl (2-(4-((E)-2-(2-chloro-4-fluorophenyl)-1-(3-fluoro-1H-indazol-5-yl)but-1-en-1-yl)phenoxy)ethyl)((E)-4-((2-hydroxyethyl)(methyl)-amino)-4-oxobut-2-en-1-yl)carbamate
  • Step-3 Synthesis of (E)-4-((2-(4-((E)-2-(2-chloro-4-fluorophenyl)-1-(3-fluoro-1H-indazol-5-yl)but-1-en-1-yl)phenoxy)ethyl)amino)-N-(2-hydroxyethyl)-N-methylbut-2-enamide (Compound 28)
  • Step-1 Synthesis of tert-butyl (2-(4-((E)-1-(1H-indazol-5-yl)-2-(4-isopropylphenyl)but-1-en-1-yl)phenoxy)ethyl)((E)-4-(dimethylamino)-4-oxobut-2-en-1-yl)carbamate
  • Step-2 Synthesis of (E)-4-((2-(4-((E)-1-(1H-indazol-5-yl)-2-(4-isopropylphenyl)but-1-en-1-yl)phenoxy)ethyl)amino)-N,N-dimethylbut-2-enamide (Compound 29)
  • Step-1 Synthesis of 4-(1-(tetrahydro-2H-pyran-2-yl)-1H-indazol-5-yl)but-3-yn-1-ol
  • Step-2 Synthesis of 5-(4-chlorobut-1-yn-1-yl)-1-(tetrahydro-2H-pyran-2-yl)-1H-indazole
  • Step-1 Synthesis of tert-butyl ((E)-4-(dimethylamino)-4-oxobut-2-en-1-yl)(2-(4-((Z)-1-(1-(tetrahydro-2H-pyran-2-yl)-1H-indazol-5-yl)-2-(4,4,5,5-tetramethyl-1,3,2-dioxaborolan-2-yl)but-l-en-1-yl)phenoxy)ethyl)carbamate
  • Step-1 Synthesis of tert-butyl (E)-(2-(4-(2-(2-(2-isopropylphenyl)-1-(1-(tetrahydro-2H-pyran-2-yl)-1H-indazol-5-yl)but-1-en-1-yl)phenoxy)ethyl)carbamate
  • Step-1 Synthesis of tert-butyl (2-(4-((E)-1-(1H-indazol-5-yl)-2-(o-tolyl)but-1-en-1-yl)phenoxy)ethyl)((E)-4-(dimethylamino)-4-oxobut-2-en-1-yl)carbamate
  • Step-2 Synthesis of (E)-4-((2-(4-((E)-1-(1H-indazol-S-yl)-2-(o-tolyl)but-1-en-1-yl)phenoxy)ethyl)amino)-N,N-dimethylbut-2-enamide (Compound 36)
  • Example 37 There is no Example 37.
  • Example 38 Synthesis of (E)-4-((2-((5-((Z)-1-(1H-indazol-5-yl)-2-phenylbut-1-en-1-yl)pyrimidin-2-yl)oxy)ethyl)amino)-N,N-dimethylbut-2-enamide (Compound 38). This is a reference example.
  • Step-1 Synthesis of tert-butyl (2-((5-bromopyrimidin-2-yl)oxy)ethyl)carbamate
  • Step-2 Synthesis of tert-butyl (2-((5-iodopyrimidin-2-yl)oxy)ethyl)carbamate
  • Step-3 Synthesis of tert-butyl (Z)-(2-((5-(2-phenyl-1-(1-(tetrahydro-2H-pyran-2-yl)-1H-indazol-5-yl)but-1-en-1-yl)pyrimidin-2-yl)oxy)ethyl)carbamate
  • Step-4 Synthesis of (Z)-2-((5-(1-(1H-indazol-5-yl)-2-phenylbut-1-en-1-yl)pyrimidin-2-yl)oxy)ethan-1-amine
  • Example 47 There is no Example 47.
  • Example 48 There is no Example 48.
  • Step-2 Synthesis of tert-butyl (2-(2-fluoro-4-iodophenoxy)ethyl)carbamate
  • Step-3 Synthesis of (Z)-2-(2-fluoro-4-(1-(3-fluoro-1H-indazol-5-yl)-2-phenylbut-1-en-1-yl)phenoxy)ethan-1-amine
  • Step-4 Synthesis of (E)-4-bromo-N,N-dimethylbut-2-enamide and (E)-4-chloro-N,N-dimethylbut-2-enamide mixture:
  • Step-1 Synthesis of tert-butyl (E)-(2-(4-(2-(2,6-difluorophenyl)-1-(3-fluoro-1-(tetrahydro-2H-pyran-2-yl)-1H-indazol-5-yl)but-1-en-1-yl)phenoxy)ethyl)carbamate
  • Step-2 Synthesis of (E)-2-(4-(2-(2,6-difluorophenyl)-1-(3-fluoro-1H-indazol-5-yl)but-1-en-1-yl)phenoxy)ethan-1-amine
  • Step-3 Synthesis of (E)-4-((2-(4-((E)-2-(2,6-difluorophenyl)-1-(3-fluoro-1H-indazol-5-yl)but-1-en-1-yl)phenoxy)ethyl)amino)-N,N-dimethylbut-2-enamide
  • Step-4 Synthesis of tert-butyl (2-(4-((E)-2-(2,6-difluorophenyl)-1-(3-fluoro-1H-indazol-5-yl)but-1-en-1-yl)phenoxy)ethyl)((E)-4-(dimethylamino)-4-oxobut-2-en-1-yl)carbamate
  • Step-5 Synthesis of (E)-4-((2-(4-((E)-2-(2,6-difluorophenyl)-1-(3-fluoro-1H-indazol-5-yl)but-1-en-1yl)phenoxy)ethyl)amino)-N,N-dimethylbut-2-enamide
  • Step-1 Synthesis of (E)-2-(3-fluoro-1H-indazol-5-yl)-2-phenylvinyl)phenoxy)ethan-1-amine
  • Example 55 There is no Example 55.
  • Step-1 Synthesis of 5-(cyclopropylethynyl)-1-(tetrahydro-2H-pyran-2-yl)-1H-indazole
  • Step-2 Synthesis of tert-butyl (Z)-(2-(4-(2-cyclopropyl-1-(1-(tetrahydro-2H-pyran-2-yl)-1H-indazol-5-yl)-2-(4,4,5,5-tetramethyl-1,3,2-dioxaborolan-2-yl)vinyl)phenoxy)ethyl)carbamate
  • Step-1 Synthesis of tert-butyl (E)-(2-(4-(2-(2-chloro-4-fluorophenyl)-1-(4-fluoro-1-(tetrahydro-2H-pyran-2-yl)-1H-indazol-5-yl)but-1-en-1-yl)phenoxy)ethyl)carbamate
  • Example 4 The compound was synthesized following the approach as outlined in Example 3 by substituting 5-(but-1-yn-1-yl)-4-fluoro-1-(tetrahydro-2H-pyran-2-yl)-1H-indazole (Example 4, Step-4) for compound 252 in Step-1, proceeding directly to Step-3, and substituting 2-chloro-4-fluoro-1-iodobenzene for compound 227 in Step-4 to afford the title compound of this step.
  • the crude product was purified by silica gel column chromatography, eluting with 2% MeOH in dichloromethane to afford the title compound (1.3 g, 16%).
  • Step-4 (Z)-5-(1,2-bis(4,4,5,5-tetramethyl-1,3,2-dioxaborolan-2-yl)but-1-en-1-yl)-3-fluoro-1-(tetrahydro-2H-pyran-2-yl)-1H-indazole (as prepared in Example 3, Step-1) for compound 233, (ii) tert-butyl (E)-(4-(dimethylamino)-4-oxobut-2-en-1-yl)(2-((5-iodopyridin-2-yl)oxy)ethyl)carbamate (as prepared in Example 25, Step-2) for compound 234, and (iii) 2-chloro-4-fluoro-1-iodobenzene for compound 262 to deliver Compound 58 (0.115 g, 10%).
  • Step-1 Synthesis of 3-fluoro-1-(tetrahydro-2H-pyran-2-yl)-5-((trimethylsilyl)ethynyl)-1H-indazole
  • Step-1A Alternative Synthesis of 3-fluoro-1-(tetrahydro-2H-pyran-2-yl)-5-((trimethylsilyl)ethynyl)-1H-indazole
  • Step-1A presents a proposed alternative to Step-1 of Example 59, for the possible preparation of 3-fluoro-1-(tetrahydro-2H-pyran-2-yl)-5-((trimethylsilyl)ethynyl)-1H-indazole, which may be used as intermediate for further synthetic routes that include that compound.
  • reaction mixture heated at 40°C-75°C for 3-8h.
  • TLC Upon completion by TLC, the reaction mixture was filtered through celite bed and washed with 30ml 2-Methyl THF. Filtrate washed with brine and concentrated under reduced pressure to afford 3-fluoro-1-(tetrahydro-2H-pyran-2-yl)-5-((trimethylsilyl)ethynyl)-1H-indazole crude (6.1 g) and used for next stage as considering 100% yield.
  • Step-2 Synthesis of 5-ethynyl-3-fluoro-1-(tetrahydro-2H-pyran-2-yl)-1H-indazole
  • Step-3 Synthesis of 3-fluoro-1-(tetrahydro-2H-pyran-2-yl)-5-(4,4,4-trifluorobut-1-yn-1-yl)-1H-indazole
  • Step-4 Synthesis of tert-butyl ((E)-4-(dimethylamino)-4-oxobut-2-en-1-yl)(2-((5-((E)-4,4,4-trifluoro-1-(3-fluoro-1-(tetrahydro-2H-pyran-2-yl)-1H-indazol-5-yl)-2-(4,4,5,5-tetramethyl-1,3,2-dioxaborolan-2-yl)but-1-en-1-yl)pyridin-2-yl)oxy)ethyl)carbamate
  • Step-5 Synthesis of tert-butyl (2-((5-((Z)-2-(2-chloro-4-fluorophenyl)-4,4,4-trifluoro-1(3-fluoro-1-(tetrahydro-2H-pyran-2-yl)-1H-indazol-5-yl)but-1-en-1-yl)pyridin-2-yl)oxy)ethyl)((E)-4-(dimethylamino)-4-oxobut-2-en-1-yl)carbamate
  • Step-6 Synthesis of (E)-4-((2-((5-((Z)-2-(2-chloro-4-fluorophenyl)-4,4,4-trifluoro-1-(3-fluoro-1H-indazol-5-yl)but-1-en-1-yl)pyridin-2-yl)oxy)ethyl)amino)-N,N-dimethylbut-2-enamide
  • Step-1 Synthesis of tert-butyl ((E)-4-(dimethylamino)-4-oxobut-2-en-1-yl)(2-((5-((Z)-4,4,4-trifluoro-1-(3-fluoro-1-(tetrahydro-2H-pyran-2-yl)-1H-indazol-5-yl)-2-phetiylbut-1-en-1-yl)pyridin-2-yl)oxy)ethyl)carbamate
  • reaction mixture was stirred at 85 °C for 7 h. After completion of reaction, reaction mixture was cooled to room temperature, diluted with water and extracted with EtOAc. The organic layer was dried over anhydrous sodium sulphate and concentrated under reduced pressure.
  • Step-2 Synthesis of (E)-NN-diniethyl-4-((2-((5-((Z)-4,4,4-trifluoro-1-(3-fluoro-1H-indazol-5-yl)-2-phenylbut-1-en-1-yl)pyridin-2-yl)oxy)ethyl)amino)but-2-enamide
  • reaction mixture was basified with saturated NaHCO 3 , extracted with ethyl acetate. Organic layer was concentrated under reduced pressure to afford crude compound, which was purified by preparative HPLC to afford desired compound (E)-N,N-dimethyl-4-((2-((5-((Z)- 4,4,4-trifluoro-1-(3-fluoro-1H-indazol-5-yl)-2-phenylbut-1-en-1-yl)pyridin-2-yl)oxy)ethyl)amino)but-2-enamide (0.03 g, 11%).
  • Example 60A Synthesis of Hydrochloride Salt of Compound 60 Step-1: Synthesis of (E)-N,N-dimethyl-4-((2-((5-((Z)-4,4,4-trifluoro-1-(3-fluoro-1H-indazol-5-yl)-2-phenylbut-1-en-1-yl)pyridin-2-yl)oxy)ethyl)amino)but-2-enamide hydrochloride
  • Example 61 Synthesis of (E)-N,N-dimethyl-4-((2-(4-((E)-4,4,4-trifluoro-1-(3-fluoro-1H-indazol-5-yl)-2-(3-fluoropyridin-4-yl)but-1-en-1-yl)phenoxy)ethyl)amino)but-2-enamide (Compound 61)
  • Example 62 Synthesis of (E)-N,N-dimethyl-4-((2-((5-((Z)-4,4, 4-trifluoro-1-(3-fluoro-1H-indazol-5-yl)-2-(3-fluoropyridin-4-yl)but-1-en-1-yl)pyridin-2-yl)oxy)ethyl)antino)but-2-enamide (Compound 62)
  • reaction mixture was cooled to room temperature, methanol and water mixture 120 mL (1:1) was added to the reaction mixture followed by potassium carbonate (34.48 g, 24.99 mmol) and KOH (4.2 g, 74.97 mmol), reaction mixture was stirred for 3 h at room temperature. After completion of reaction, reaction mixture was added diluted with ethyl acetate and the organic layer was washed with water followed by brine. The organic layer was dried over anhydrous Na 2 SO 4 and concentrated under reduced pressure to obtain this title compound (5 g) as an off-white solid.
  • Step-3 Synthesis of 5-bromo-1-(tetrahydro-2H-pyran-2-yl)-1H-pyrazolo[4,3-b]pyridine
  • Step-4 Synthesis of 5-(but-1-yn-1-yl)-1-(tetrahydro-2H-pyran-2-yl)-1H-pyrazolo[4,3-b]pyridine
  • Step-5 Synthesis of tert-butyl (2-(4-(4,4,5,5-tetramethyl-1,3,2-dioxaborolan-2-yl)phenoxy)ethyl)carbamate
  • Step-6 Synthesis of tert-butyl (E)-(2-(4-(2-phenyl-1-(1-(tetrahydro-2H-pyran-2-yl)-1H-pyrazolo[4,3-b]pyridin-5-yl)but-1-en-1-yl)phenoxy)ethyl)carbamate
  • Step-3 Synthesis of tert-butyl (2-(3-fluoro-4-iodophenoxy)ethyl)carbamate
  • Step-4 Synthesis of tert-butyl (Z)-(2-(3-fluoro-4-(1-(3-fluoro-1-(tetrahydro-2H-pyran-2-yl)-1H-indazol-5-yl)-2-phenylbut-1-en-1-yl)phenoxy)ethyl)carbamate
  • Step-5 Synthesis of 5-bromo-6-fluoro-1-(tetrahydro-2H-pyran-2-yl)-1H-indazole
  • Step-6 Synthesis of 5-(but-1-yn-1-yl)-3,6-difluoro-1-(tetrahydro-2H-pyran-2-yl)-1H-indazole
  • Step-7 Synthesis of tert-butyl (Z)-(2-(4-(1-(3,6-difluoro-1-(tetrahydro-2H-pyran-2-yl)-1H-indazol-5-yl)-2-(4,4,5,5-tetramethyl-1,3,2-dioxaborolan-2-yl)but-1-en-1-yl)phenoxy)ethyl)carbamate
  • Step-4 The compound was synthesized following the approach as outlined in Example 14 by substituting into Step-4 (Z)-5-(1,2-bis(4,4,5,5-tetramethyl-1,3,2-dioxaborolan-2-yl)but-1-en-1-yl)-3-fluoro-1-(tetrahydro-2H-pyran-2-yl)-1H-indazole (as prepared in Example 3, Step-1) for compound 233 and 2-iodopyridine for compound 262 to deliver Compound 67 (0.010 g) as an off-white solid.
  • Step-4 The compound was synthesized following the approach as outlined in Example 14 by substituting into Step-4 (Z)-5-(1,2-bis(4,4,5,5-tetramethyl-1,3,2-dioxaborolan-2-yl)but-1-en-1-yl)-3-fluoro-1-(tetrahydro-2H-pyran-2-yl)-1H-indazole (as prepared in Example 3, Step-1) for compound 233 and tert-butyl (E)-(4-(dimethylamino)-4-oxobut-2-en-1-yl)(2-((5-iodopyridin-2-yl)oxy)ethyl)carbamate (as prepared in Example 25, Step-2) for compound 234 to deliver Compound 68 (0.165 g, 11%).
  • Step-1 Synthesis of tert-butyl (E)-(2-(4-(4,4,4-trifluoro-1-(3-fluoro-1-(tetrahydro-2H-pyran-2-yl)-1H-indazol-5-yl)-2-phenylbut-1-en-1-yl)phenoxy)ethyl)carbamate
  • reaction mixture was stirred at 90 °C for 12 h. After completion of reaction, reaction mixture was cooled to room temperature, diluted with water and extracted with EtOAc. The organic layer was dried over anhydrous sodium sulphate and concentrated under reduced pressure.
  • Step-2 Synthesis of (E)-2-(4-(4,4,4-trifluoro-1-(3-fluoro-1H-indazol-5-yl)-2-phenylbut-1-en-1-yl)phenoxy)ethan-1-amine
  • Step-3 Synthesis of (E)-N,N-dimethyl-4-((2-(4-((E)-4,4,4-trifluoro-1-(3-fluoro-1H-indazol-5-yl)-2-phenylbut-1-en-1-yl)phenoxy)ethyl)amino)but-2-enamide
  • Step-4 Synthesis of tert-butyl ((E)-4-(dimethylamino)-4-oxobut-2-en-1-yl)(2-(4-((E)-4,4,4-trifluoro-1-(3-fluoro-1H-indazol-5-yl)-2-phenylbut-1-en-1-yl)phenoxy)ethyl)carbamate
  • Step-5 Synthesis of (E)-N,N-dimethyl-4-((2-(4-((E)-4,4,4-trifluoro-1-(3-fluoro-1H-indazol-5-yl)-2-phetiylbut-l-en-1-yl)phenoxy)ethyl)atniiio)but-2-enainide
  • Example 69A Synthesis of (E)-N,N-dimethyl-4-((2-(4-((E)-4,4,4-trifluoro-1-(3-fluoro-1H-indazol-5-yl)-2-phenylbut-1-en-1-yl)phenoxy)ethyl)amino)but-2-enamide hydrochloride
  • Step-1A Synthesis of 3-fluoro-1-(tetrahydro-2H-pyran-2-yl)-5-((trimethylsilyl)ethynyl)-1H-indazole
  • Step-2A Synthesis of 5-ethynyl-3-fluoro-1-(tetrahydro-2H-pyran-2-yl)-1H-indazole
  • Step-3A Synthesis of 3-fluoro-1-(tetrahydro-2H-pyran-2-yl)-5-(4,4,4-trifluorobut-1-yn-1-yl)-1H-indazole
  • reaction mixture was again degassed with three vacuum/N 2 cycles, heated at 80 °C for 16 h.
  • reaction mixture was cooled to room temperature, filtered through celite. Filtrate was diluted with water and extracted with EtOAc (2 x 3 L). The organic layer was dried over anhydrous sodium sulphate and concentrated under reduced pressure.
  • Step-4A Synthesis of tert-butyl ((E)-4-(ditnethylamino)-4-oxobut-2-en-1-yl)(2-(4-((Z)-4,4,4-trifluoro-1-(3-fluoro-1-(tetrahydro-2H-pyran-2-yl)-1H-indazol-5-yl)-2-(4,4,5,5-tetramethyl-1,3,2-dioxaborolan-2-yl)but-1-en-1-yl)phenoxy)ethyl)carbamate
  • reaction mixture was allowed to cool to room temperature, tert-butyl (E)-(4-(dimethylamino)-4-oxobut-2-en-1-yl)(2-(4-iodophenoxy)ethyl)carbamate (0.62 Kg, 1.072 mol), bis(triphenylphosphine)palladium (II) dichloride (53.7 g, 0.076 mol), cesium carbonate (0.6 Kg, 3.064 mol), 2-methyl THF (5 L) and water (250 mL) were added. This mixture was degassed with nitrogen for 15 min, stirred at room temperature for 36 h. After completion of reaction, reaction mixture was cooled to room temperature, filtered through celite.
  • Step-5A Synthesis of tert-butyl ((E)-4-(dimethylamino)-4-oxobut-2-en-1-yl)(2-(4-((E)-4,4,4-trifluoro-1-(3-fluoro-1-(tetrahydro-2H-pyran-2-yl)-1H-indazol-5-yl)-2-phenylbut-1-en-1-yl)phenoxy)ethyl)carbamate
  • reaction mixture was stirred at 90 °C for 5 h. After completion of reaction, reaction mixture was cooled to room temperature followed by filtered through celite. Filtrate was diluted with water and extracted with EtOAc (2 x 2 L). The organic layer was dried over anhydrous sodium sulphate and concentrated under reduced pressure to afford title compound tert-butyl ((E)-4-(dimethylamino)-4-oxobut-2-en-1-yl)(2-(4-((E)-4,4,4-trifluoro-1-(3-fluoro-1-(tetrahydro-2H-pyran-2-yl)-1H-indazol-5-yl)-2-phenylbut-1-en-1-yl)phenoxy)ethyl)carbamate (700 g, crude) 48% purity by HPLC.
  • Step-6A Synthesis of (E)-N,N-dimethyl-4-((2-(4-((E)-4,4,4-trifluoro-1-(3-fluoro-1H-indazol-5-yl)-2-phenylbut-1-en-1-yl)phenoxy)ethyl)amino)but-2-enamide
  • Step-7A Synthesis of (E)-N,N-dimethyl-4-((2-(4-((E)-4,4,4-trifluoro-1-(3-fluoro-1H-indazol-5-yl)-2-phenylbut-1-en-1-yl)phenoxy)ethyl)amino)but-2-enamide hydrochloride
  • Steps 8A-12A report synthesis of the intermediate tert-butyl ( E )-(4-(dimethylamino)-4-oxobut-2-en-1-yl)(2-(4-iodophenoxy)ethyl)carbamate
  • Step 8A Synthesis of tert-butyl (E)-(4-(dimethylamino)-4-oxobut-2-en-1-yl)(2-(4-iodophenoxy)ethyl)carbamate
  • Step-9A Synthesis of tert-butyl (2-bromoethyl)carbamate
  • Bromoethylamine hydrobromide (1 Kg, 4.88 mol) was added to a stirred solution of sodium carbonate (1.55 Kg, 14.6 mol), di-t-butyl dicarbonate (1.6 Kg, 7.32 mol) in 1,4-dioxane-water mixture (2:1, 3 L) at 0°C and the mixture was stirred at room temperature for 12 h. After completion of reaction, excess of 1,4-dioxane was removed under reduced pressure. Reaction mixture was extracted with ethylacetate (2 x 4 L), organic layer was washed with water followed by brine, dried over anhydrous sodium sulphate, filtered and concentrated under reduced pressure.
  • Step-10A Synthesis of tert-butyl (2-(4-iodophenoxy)ethyl)carbamate
  • Step-11A Synthesis of 2-(4-iodophenoxy)ethan-1-amine
  • Step-12A Synthesis of (E)-4-((2-(4-iodophenoxy)ethyl)amino)-N,N-dimethylbut-2-enamide
  • Example 70 There is no Example 70.
  • Example 71 There is no Example 71.
  • Step-1 Synthesis of (E)-N-(2-hydroxyethyl)-4-((2-(4-iodophenoxy)ethyl)amino)-N-methylbut-2-enamide
  • Step-2 Synthesis of tert-butyl (E)-(4-((2-hydroxyethyl)(methyl)amino)-4-oxobut-2-en-1-yl)(2-(4-iodophenoxy)ethyl)carbamate
  • Step-2 Synthesis of (E)-5-bromo-2,3-difluorobenzaldehyde O-methyl oxime
  • Step-4 Synthesis of 5-bromo-7-fluoro-1-(tetrahydro-2H-pyran-2-yl)-1H-indazole
  • Step-5 Synthesis of 5-(but-1-yn-1-yl)-7-fluoro-1-(tetrahydro-2H-pyran-2-yl)-1H-indazole
  • reaction mixture was quenched with water, extracted with ethyl acetate (500 mL). The organic layer was washed with brine, dried over anhydrous sodium sulphate and concentrated under reduced pressure. The product but-1-yn-1-yltrimethylsilane was distilled between 110-160 °C to afford the desired product (38 g).
  • Step-2 Synthesis of 3-fluoro-5-(pent-1-yn-1-yl)-1-(tetrahydro-2H-pyran-2-yl)-1H-indazole
  • Example 78 There is no Example 78.
  • Step-1 Synthesis of 5-(but-1-yn-1-yl)-3,7-difluoro-1-(tetrahydro-2H-pyran-2-yl)-1H-indazole
  • Step-1 Synthesis of (E)-2-(4-(1-(3-fluoro-1-(tetrahydro-2H-pyran-2-yl)-1H-indazol-5-yl)-3-methyl-2-phenylbut-1-en-1-yl)phenoxy)ethan-1-amine

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